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Every bridge in Webb County, Texas

Name: Every bridge in Webb County, Texas
Creator: Bridge Report Card
License: https://creativecommons.org/publicdomain/zero/1.0/

380 inventoried bridges, busiest first

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Webb County, Texas, has 380 bridges in the 2025 National Bridge Inventory: 185 rated good, 191 fair, and 4 poor (as of August 20, 2026).
This index lists every one of them, busiest first; each links to its own condition record.

Bridge	Built	Vehicles/day	Condition
Ih 35 Ml over US 59	1965	83,271	Fair
Ih 35 Ml over Del Mar Blvd	1962	74,048	Fair
Ih 35 Ml over Chicago St & Ugarte St	1965	59,067	Fair
Ih 35 Ml over Sanchez St & Park St	1965	50,413	Fair
Ih 35 over East Fork Manadas Creek	1960	49,524	Fair
Lp 20 over Kcs RR & Draw	1995	49,294	Good
Lp 20 over Ss 259	2014	49,294	Good
US 59 over Drainage Ditch	1948	44,462	Good
Ih 35 Ml over Jefferson St	1965	43,529	Fair
State Loop 20 EB over IH 35 ML FR DCs and UP	2020	42,802	Good
State Loop 20 WB over IH 35 ML FR DC and UPRR	2020	42,802	Good
Ih 35 Ml over Shiloh Rd	1998	42,082	Good
US 83 over Chacon Creek	1938	41,850	Fair
FM 1472 over Manadas Creek	1971	39,968	Fair
Parking Lot over Zacate Creek	1916	39,194	Fair
FM 1472 NB Dc over Ih 35 Ml; Sbfr & UPRR	2010	37,990	Good
Ih 35 NB over Mann Rd	1962	37,540	Good
Ih 35 SB over Mann Rd	1962	37,540	Fair
Lp 20 over Drain	2000	37,000	Good
Lp 20 over Riverbank Rd	2000	37,000	Good
Sl 20 over Draw	1995	37,000	Good
Sl 20 over Draw	2007	37,000	Good
Sl 20 over Draw	2007	37,000	Good
US 83 over Drainage Ditch	1991	36,133	Fair
Ih 35 over Draw	1958	35,954	Fair
Ih 35 over Draw	1958	35,954	Fair
Ih 35 over Draw	1958	35,954	Fair
Ih 35 over Draw	1958	35,954	Fair
Ih 35 NB Ml over UPRR	2023	34,475	Good
Ih 35 SB Ml over UPRR	2024	34,475	Good
Lp 20 over Draw	1995	34,181	Good
Ih 35 Sbml over Calton Rd	1962	33,603	Fair
Rosario & Market over Drainage Ditch	1991	33,180	Fair
US 83 NB over Zacate Creek	1974	33,180	Good
US 83 SB over Zacate Creek	1992	33,180	Fair
Ih 35 Nbml over Calton Rd	1962	32,764	Fair
US 59 over San Francisco Drain	1954	31,707	Fair
Lp 20 over Draw	2000	31,000	Fair
Mcpherson Rd over Zacate Creek	1993	28,435	Fair
SH 359 over Chacon Creek	1993	27,015	Good
Calton RD/IH35 Row over Drainage Ditch	1962	24,825	Fair
Ih 35 over Dolores Creek	1958	22,678	Fair
Ih 35 over Draw	1958	22,678	Fair
Ih 35 over Draw	1958	22,678	Fair
Ih 35 over Draw	1958	22,678	Fair
Ih 35 over Draw	1958	22,678	Good
Santa Ursula Avenu over Rio Grande River	1976	22,500	Fair
Ih 35 Nbml over Uniroyal Interchange	1984	22,140	Fair
Lp 20 over US 59	2008	22,120	Fair
E Del Mar Blvd over Zacate Creek	1980	21,783	Fair
Mcpherson Rd over Drainage Ditch	1982	21,369	Fair
Ih 35 over Draw	1958	20,960	Fair
Ih 35 over Draw	1958	20,960	Fair
Sp 400 over Chacon Creek	1996	20,937	Good
Ih 35 Sbml over Lp 20 Fr Rds	2006	20,662	Good
Ih 35 NB over Draw	1958	20,213	Fair
Ih 35 SB over Draw	1958	20,213	Fair
Ih 35 Nbml over Lp 20 Fr Rds	2003	20,164	Fair
State Loop 20 over Draw	2011	20,000	Fair
US 83 NB over Draw	1980	19,901	Fair
US 83 SB over Draw	1921	19,901	Fair
Shiloh Rd over Manadas Creek	1998	19,837	Good
Mcpherson Rd over Manadas Creek Tributary	1998	19,242	Good
Calton Rd over Zacate Creek	1995	18,812	Good
Lp 20 EB over FM 1472	2000	18,500	Good
Lp 20 WB over FM 1472	2000	18,500	Good
N Meadow Ave over Kcs RR	1916	18,407	Fair
S Meadow Ave over Chacon Creek	2002	17,635	Fair
Ih 35 over Draw	1958	17,297	Fair
Ih 35 over Draw	1958	17,297	Fair
Ih 35 over Draw	1958	17,297	Good
Ih 35 over Draw	1958	17,297	Fair
Park Stclark Blvd over Zacate Creek	1983	17,260	Good
Bartlett Ave over Zacate Creek	2016	16,997	Good
US 83 NB over Kcs RR & City Streets	2012	16,590	Fair
US 83 SB over Kcs RR & City Streets	2012	16,590	Fair
Ih 35 over Draw	1922	16,495	Fair
Ih 35 over Draw	1958	16,495	Good
Ih 35 over Draw	1958	16,495	Fair
Ih 35 over Draw	1958	16,495	Fair
Ih 35 over Draw	1958	16,495	Good
Ih 35 over Draw	1958	16,495	Fair
Ih 35 over Draw	1958	16,495	Good
Carriers Drive over UPRR	2001	16,248	Fair
Lp 20 Wbml over Mcpherson Rd	2014	15,800	Good
Lp 20 Ebml over International Blvd	2017	15,500	Good
Lp 20 Ebml over Mcpherson Rd	2014	15,500	Good
Lp 20 Wbml over International Blvd	2017	15,500	Good
State Spur 260 over Arroyo Chacon Chico	1940	14,567	Fair
FM 1472 NB over Sombreretillo Creek	1996	13,954	Good
Ih 35 NB on Ramp over Drainage Ditch	1962	13,835	Fair
Ih 35 Nbfr over Drainage Ditch	1962	13,644	Fair
Loop 20 over Rio Grande River	2000	13,500	Fair
Lp 20 over Chacon Creek	1995	13,288	Good
US 83S to SH 359E over US 83	2007	12,100	Good
Milo Rd over Draw	1988	12,007	Fair
FM 1472 over Draw	1996	10,830	Fair
LP20 WB to IH35SB over LP20ML Ebfr Wbfr R/R	2024	10,613	Good
Ih 35 Sbml over Callaghan Interchange	1982	10,310	Good
Ih 35 Sbml over Ih 35 Bus	1978	10,310	Fair
Ih 35 Sbml over Jaboncillo Creek	1978	10,310	Fair
Ih 35 Sbml over Jamoncillos Creek	1983	10,310	Fair
Ih 35 Sbml over San Roman Interchange	1983	10,310	Good
Ih 35 Nbml over Callaghan Interchange	1982	10,282	Good
Ih 35 Nbml over Ih 35 Bus	1978	10,282	Good
Ih 35 Nbml over Jaboncillo Creek	1958	10,282	Good
Ih 35 Nbml over Jamoncillos Creek	1958	10,282	Fair
Ih 35 Nbml over San Roman Interchange	1983	10,282	Good
Milo Rd over Draw	1988	10,197	Fair
Lp 20 NB over Chacon Creek Trib No. 2	2011	10,100	Good
Lp 20 SB over Chacon Creek Trib No. 2	2011	10,100	Good
Iturbide-market St over Zacate Creek	1928	10,006	Fair
Lafayette St over UPRR & City Streets	1997	9,985	Fair
Ih 35 SB over US 83	1960	9,869	Fair
Ih 35 Sbml over Carrizitos Creek	1982	9,869	Fair
Ih 35 Sbml over Webb Interchange	1982	9,869	Good
Ih 35 NB over US 83	1960	9,768	Fair
Ih 35 Nbml over Carrizitos Creek	1958	9,768	Fair
Ih 35 Nbml over Webb Interchange	1982	9,768	Good
Washington St over UPRR & Kcs RR	1972	9,677	Fair
SH 359 over Dolores Creek	1926	9,600	Fair
SH 359 over Draw	1926	9,600	Fair
SH 359 over Draw	1961	9,600	Good
SH 359 over Goose Creek	1925	9,600	Good
SH 359 over Lobo Creek	1923	9,600	Fair
Springfield Ave over Zacate Creek	1989	9,393	Good
Taylor-chicago St over San Francisco Drain	1981	8,802	Good
Arkansas Ave over Draw	1984	8,712	Fair
Washington St over Ih 35	1981	8,520	Fair
Jefferson/lyon St over Zacate Creek	1975	8,489	Fair
IH35 NB to SL20 WB over Ih 35	2007	8,300	Fair
Scott St over Ih 35	1981	8,240	Fair
San Isidro Pkwy over Drainage Ditch	2000	8,229	Fair
Bristol Rd over Drainage Ditch	2008	7,950	Good
Rancho Viejo Drive over Drainage Ditch	2008	7,920	Good
Ih 35 Ml & Nbfr over Drainage Ditch	1965	7,847	Good
Washington-c.c. St over Zacate Creek	1950	7,781	Fair
Jefferson St over Drainage Ditch	1975	7,590	Fair
Ih 35 NB Off Ramp over San Francisco Drain	1975	7,500	Good
Ih 35 NB on Ramp over San Francisco Drain	1975	7,500	Good
Gale St over Zacate Creek	2000	7,157	Good
Winfield Pkwy over Drainage Ditch	1990	7,031	Fair
Hillside Rd over Zacate Creek	1982	6,974	Good
Mangana Hein Rd over Draw	1990	6,630	Good
Mangana Hein Rd over Draw	2008	6,630	Fair
Sanchez-gustavus over Zacate Creek	1950	6,611	Fair
Quail Creek Rd over Drainage Ditch	1992	6,445	Fair
US 83 Ml over San Idelfonso Creek	1980	6,181	Fair
US 83 NB over Draw	1921	5,966	Fair
US 83 NB over Draw	1921	5,966	Fair
LP20 EB to IH35 NB over Ih 35	2001	5,838	Fair
US 83 SB over Draw	1999	5,709	Fair
US 83 SB over Draw	1999	5,709	Fair
US 83 SB over Espejo-molina Rd	2003	5,709	Good
FM 1472 NB over Cuervo Creek	1996	5,410	Good
FM 1472 SB over Cuervo Creek	2000	5,410	Good
FM 1472 SB over Sombreretillo Creek	2000	5,410	Good
FM 1472SB to LP20E over Lp 20 & FM 1472 NB	2000	5,410	Fair
Lp 20 over SH 359	2014	5,330	Good
US 59 over Chacon Creek	2006	5,300	Good
US 59 over Chacon Creek Branch	1948	5,300	Good
Lp 20 Ml over Sp 400	2017	5,000	Good
Flecha Ln over Drainage Ditch	2008	4,429	Good
FM 1472 SB over Draw	1965	4,401	Good
SH 359W to US 83S over US 83	2008	4,400	Good
FM 1472 NB over Santa Isabel Creek	2000	4,260	Good
Espejo-gates Rd over Velenzuela Creek	1953	4,242	Poor
Espejo-gates Rd over Velenzuela Creek Relief	1953	4,242	Poor
Lake Victoria Rd over Draw	2008	4,167	Fair
Lake Victoria Rd over Draw	2008	4,167	Good
US 83 over Canada Creek	2002	4,061	Good
US 83 over Draw	2003	4,061	Good
Lp 20 Nbfr over Kcs RR & Draw	2017	4,000	Good
Lp 20 Sbfr over Kcs RR & Draw	2019	4,000	Good
US 83 over Cuchara Creek	1933	3,890	Fair
US 83 over Draw	1933	3,890	Good
US 83 over Las Raices Creek	1933	3,890	Good
US 83 over Las Raices Creek Relief	1933	3,890	Good
US 83 over N Br of Las Raices CR	1933	3,890	Good
US 83 over S Br of Las Raices Creek	1933	3,890	Good
S New York Ave over Drainage Ditch	1990	3,830	Fair
Lowry Rd over Drainage Ditch	1992	3,724	Poor
US 83 over Arroyo Palito Blanco	1933	3,663	Good
US 83 over Draw	1933	3,663	Good
US 83 over Draw	1933	3,663	Good
US 83 over Tejones Creek	1933	3,663	Good
Santa Ursula Dc over Parking Area/park	2009	3,565	Good
SH 44 over Draw	1954	3,540	Fair
SH 44 over Draw	1954	3,540	Fair
SH 44 over Draw	1954	3,540	Fair
SH 44 over Draw	1954	3,540	Fair
SH 44 over Draw	1954	3,540	Good
SH 44 over Draw	1954	3,540	Fair
SH 44 over Draw	1954	3,540	Fair
SH 44 over Draw	1954	3,540	Good
SH 44 over Draw	1954	3,540	Good
SH 44 over Draw	1954	3,540	Fair
SH 44 over Draw	1954	3,540	Good
SH 44 over Draw	1954	3,540	Good
SH 44 over Los Olmos Creek	2018	3,540	Good
SH 44 over Los Olmos Creek E Relief	1954	3,540	Good
SH 44 over Los Olmos Creek Trib	1954	3,540	Fair
SH 44 over San Casimiro Creek	2018	3,540	Good
Lp 20 NB over San Idelfonso Creek	2012	3,500	Good
Lp 20 SB over San Idelfonso Creek	2011	3,500	Good
FM 1472 SB Dc over UPRR & Ih 35 Sbfr	2010	3,440	Fair
SH 359 over Branch of Retama Creek	1925	3,377	Good
SH 359 over Draw	1925	3,377	Good
SH 359 over Draw	1964	3,377	Fair
SH 359 over San Juanito Creek No 1	1925	3,377	Fair
SH 359 over San Juanito Creek No 2	1925	3,377	Good
SH 359 over San Juanito Creek No 3	1925	3,377	Good
Ih 35 SB over Uniroyal Interchange	1984	3,210	Fair
SH 359 over Drainage Ditch	1964	3,185	Good
SH 359 over Draw	1925	3,185	Fair
SH 359 over Retama Creek	1925	3,185	Fair
SH 359 over Tex-mex RR	1929	3,185	Fair
SH 359 over Draw	1925	3,184	Good
SH 359 over Draw	1925	3,184	Good
SH 359 over Trib of Reiser CR	1924	3,184	Fair
SH 359 over Trib of Reiser CR	1929	3,184	Good
SH 359 over Trib of Reiser Creek	1925	3,184	Fair
Yukon Ln over Drainage Ditch	2003	3,167	Fair
SH 359 over Br Arroyo De Los Angeles	1928	3,157	Fair
SH 359 over Br Arroyo De Los Angeles	1928	3,157	Fair
SH 359 over Draw	1925	3,150	Fair
FM 1472 SB over Pinto Valle Creek	2000	3,058	Good
FM 1472 SB over Santa Isabel Creek	1996	3,058	Good
SH 359 over Draw	1962	2,981	Good
SH 359 over Draw	1962	2,981	Good
Obsidian Rd over Draw	2008	2,869	Fair
US 59 over Draw	1948	2,721	Fair
US 59 over Draw	1948	2,721	Fair
US 59 over Los Tios Creek	1948	2,721	Fair
FM 1472 NB over Los Indios Creek	1996	2,515	Fair
FM 1472 NB over Pinto Valle Creek	1996	2,515	Fair
Pecan St over Tinaja Creek	1985	2,500	Good
S Louisiana Ave over Tinaja Creek	1985	2,500	Good
Marcella Ave over Zacate Creek	1986	2,161	Fair
FM 1472 SB over Los Indios Creek	2000	2,115	Good
US 83 NB over Becerra Creek	2002	2,075	Good
US 83 NB over Draw	2003	2,075	Fair
US 83 NB over Espejo-molina Rd	2003	2,075	Good
US 59 over Caliche Creek	1950	2,051	Fair
US 59 over Draw	1948	2,051	Fair
US 59 over Draw	1950	2,051	Fair
US 59 over Draw	1950	2,051	Good
US 59 over El Gato Creek	1950	2,051	Fair
US 59 over Salado Creek	1950	2,051	Fair
US 59 over Draw	1950	2,028	Fair
US 83 SB over Becerra Creek	2003	1,986	Good
US 83 SB over Draw	2003	1,986	Fair
SH 255 over Santa Isabel Creek	1999	1,930	Fair
US 59 over Black Creek	1950	1,898	Fair
US 59 over Black Creek Tributary	1950	1,898	Fair
US 59 over Draw	1950	1,898	Fair
US 59 over Draw	1968	1,898	Good
US 59 over Mesquitoso Creek	1950	1,898	Fair
US 59 over Torres Creek Tributary	1950	1,898	Fair
US 59 over Torres Creek Tributary	1950	1,898	Fair
US 59 over Torres Creek	1950	1,830	Good
US 59 over Torres Creek Tributary	1950	1,830	Good
US 59 over Torres Creek Tributary	1950	1,830	Fair
Arkansas/guatemozi over US 83	2008	1,800	Good
FM 3338 over Draw	1979	1,745	Good
FM 3338 over Tordillo Creek	1979	1,745	Fair
Ext of SH 255 Toll over Rio Grande River	1991	1,725	Good
San Francisco Ave over Drainage Ditch	1975	1,675	Good
FM 1472 SB Acc Lp over Manadas Creek	2008	1,554	Fair
Shiloh Rd over Zacate Creek	2007	1,500	Good
SH 44 over Black Creek	1954	1,444	Fair
SH 44 over Draw	1954	1,444	Fair
Dc # 8 over Ih 35 Sbfr & Lp 20 Ebfr	2024	1,351	Fair
Fenwick Dr over Zacate Creek	2005	1,331	Fair
FM 1472 NB Acc Lp over Manadas Creek	2008	1,245	Good
FM 1472 over Carricitos Creek	1975	1,237	Good
FM 1472 over Carricitos Creek	1975	1,237	Good
FM 1472 over Carricitos Creek	1975	1,237	Fair
FM 1472 over Drainage Ditch	1973	1,237	Good
FM 1472 over Draw	1965	1,237	Fair
FM 1472 over Draw	1965	1,237	Good
FM 1472 over Draw	1975	1,237	Good
FM 1472 over Llave Creek	1973	1,237	Fair
FM 1472 over Santo Tomas Creek	1965	1,237	Good
IH35 SB to SL20 WB over Ih 35 Sbfr & Sl 20 Wbfr	2003	1,200	Fair
SH 255 over US 83	2001	1,200	Good
SH 44 over Draw	1957	1,094	Fair
SH 44 over Draw	1957	1,094	Fair
SH 44 over Draw	1957	1,094	Fair
SH 44 over Draw	1957	1,094	Fair
SH 44 over Jaboncillo Creek	1957	1,094	Good
Ih 35 Nbfr over Row	2008	1,030	Good
Inspiration Pkwy over Drainage Ditch	2017	1,000	Good
FM 649 over Draw	1925	943	Fair
FM 3338 over Draw	2004	850	Fair
San Salvador St over Tinaja Creek	1988	839	Good
SH 255 (cctr) over Drain	1999	630	Fair
SH 255 (cctr) over Drain	1999	630	Fair
SH 255 Ml over Drain	1999	630	Fair
SH 255 Ml over Drain	1999	630	Fair
SH 255 Toll (cctr) over Drain	1999	630	Good
SH 255 Toll (cctr) over Drain	1999	630	Good
SH 255 Toll Road over Ih 35	2001	630	Good
SH 255 over Drain	1999	630	Fair
SH 255 over Drain	1999	630	Fair
SH 255 over Drain	1999	630	Good
SH 255 over UPRR	1999	630	Good
SH 255 over West Santa Isabel Creek	1999	630	Fair
Ih 35 Wfr over Jaboncillo Creek	1978	600	Good
Ih 35 Wfr over Jamoncillos Creek	1922	600	Fair
Mines Rd over Chupadora Creek	1950	591	Fair
Mines Rd over Chupadora Creek	2024	591	Good
Mines Rd over San Ambrosia Creek	2016	591	Good
Mines Rd over San Lorenzo Creek	2008	591	Fair
Ih 35 over Draw	1958	557	Fair
Santa Clara St over Tinaja Creek	1985	549	Good
Raices Rd over Jaboncillo Creek Branch	2008	519	Good
Martinena Rd over Jaboncillo Creek Branch	1987	513	Fair
Country Club Dr over Zacate Creek	2008	500	Good
Tres Equis Blvd over Ih 35 Ml	2008	500	Good
Denmark Ln over Drainage Ditch	2003	447	Good
Mangana Hein Rd over Becerra Creek Branch	1990	410	Fair
Ih 35 Efr over Jaboncillo Creek	1978	390	Good
Ih 35 Efr over Jamoncillos Creek	1983	390	Good
Mines Rd over Espada Creek Branch	2017	357	Good
Escondido Drive over Draw	2009	340	Fair
Lake Carnegie Ct over Draw	2008	340	Fair
SH 255 EB (cctr) over Drain	1999	315	Fair
SH 255 EB (cctr) over East Tejones Creek	1999	315	Good
SH 255 EB (cctr) over Tejones Creek	1999	315	Good
SH 255 Ebfr over Drain	1999	315	Good
SH 255 WB (cctr) over East Tejones Creek	1999	315	Good
SH 255 WB (cctr) over Tejones Creek	1999	315	Good
SH 255 WB over Drain	1999	315	Good
SH 255 Wbfr over Drain	1999	315	Fair
FM 2895 over Draw	1966	304	Good
FM 2895 over Draw	1969	304	Good
FM 2895 over Reiser Creek	1958	304	Good
Country Club Dr over Drainage Ditch	1990	300	Good
San Eduardo Ave over Drainage Ditch	1975	294	Good
FM 2895 over Caliche Creek	1969	272	Fair
FM 2895 over Draw	1969	272	Good
FM 2895 over Gato Creek	1969	272	Good
Mangana Hein Rd over Becerra Creek	1950	252	Fair
Mangana Hein Rd over Dolores Creek	1988	252	Poor
Backwoods Dr over Zacate Creek	2013	250	Good
Burke Dr over Zacate Creek	2008	250	Good
Carrier Drive over Ih 35 Main Lanes	2008	200	Good
Mines Rd over Espada Creek	2010	194	Good
Mines Rd over Espada Creek Branch	1984	194	Fair
Mines Rd over Espada Creek Branch	1984	194	Fair
Mines Rd over Pinto Creek	1984	194	Fair
Mines Rd over Espada Creek Branch	2018	160	Good
Vaquillas Rd over Agua Azul Creek	1972	125	Fair
Las Tiendas Rd over Palito Blanco Arroyo	2014	122	Good
Las Tiendas Rd over Santa Isabel Creek Br	2000	122	Fair
Las Tiendas Rd over Santa Isabel Creek Br	1960	122	Fair
Las Tiendas Rd over Tejones Creek	2014	122	Good
Callaghan Rd over Carrizitos Creek	2024	100	Good
Links Dr over Zacate Creek	2002	100	Good
US 83 Efr over Draw	1921	100	Fair
US 83 Efr over San Idelfonso Creek	1950	100	Fair
Lincoln Rd over Becerra Creek	2017	80	Fair
Convent Avenue over Rio Grande River	1956	62	Fair
Ih 35 Efr over Carrizitos Creek	1982	60	Good
Ih 35 Wfr North over Right of Way @ SH 255	2001	60	Good
Lope De Vega Drive over Draw	2009	50	Fair
Rubio Rd over San Juanito Creek	2012	50	Good
Kreuger Rd over Jaboncillo Creek Branch	1996	42	Fair
Jennings Rd over Agua Azul Creek	1990	25	Fair
Jennings Rd over Barrocito Creek	1988	25	Good
Lincoln Road over Salado Creek	1947	23	Fair
Lincoln Road over Salado Creek Branch	1967	23	Fair
Callaghan Rd over Carrizitos Creek Branch	2008	19	Good
Callaghan Rd over Carrizitos Creek Branch	2012	19	Good
Callaghan Rd over Carrizitos Creek Branch	2008	19	Good
Callaghan Rd over Carrizitos Creek Branch	2008	19	Good
Callaghan Rd over Carrizitos Creek Branch	2024	19	Fair
Ih 35 Wfr South over Row Terrain	2001	10	Good
Ih 35 Wfr over Carrizitos Creek	1922	10	Fair

Source: FHWA National Bridge Inventory, 2025.

Webb County bridge conditions · Texas bridges by county.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.