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Bridge conditions in Harris County, Texas

4,040 inventoried bridges · 24 rated poor · 2025 National Bridge Inventory

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

Harris County tracks close to typical: 24 of its 4,040 inventoried bridges (0.6%) are rated poor, against a national rate of about 7%.

24 of the 4,040 bridges in Harris County, Texas, are rated in poor condition (0.6%) in the 2025 National Bridge Inventory, as of August 20, 2026.
2,011 bridges (49.8%) are rated good and 2,005 (49.6%) fair.
The median Harris County bridge was built in 1990.
The busiest poor-rated bridge is Ih 45 SB over Crosstimbers St (built 1960), carrying about 109,570 vehicles a day.

Good 49.8% · Fair 49.6% · Poor 0.6% of 4,040 bridges

Bridges rated poor

Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.

Bridge	Built	Vehicles/day	Condition
Ih 45 SB over Crosstimbers St	1960	109,570	Poor
Ih 45 NB over Crosstimbers St	1960	96,046	Poor
S Braeswood Blvd over Hcfcd Ditch	1970	44,730	Poor
US 90A SB over Buffalo Bayou/ Zoltowski	1956	25,730	Poor
US 59 Nb/ih 610 WB over Ih 610	1979	21,541	Poor
Ih 45 SB / Bw 8 WB over Ih 45 Sbfr & Bw 8 Wbfr	1997	18,977	Poor
SH 146 NB over Taylor Bayou	1969	18,841	Poor
SH 146 SB over Taylor Bayou	1969	18,841	Poor
Broadway Boulevard over Brays Bayou	1962	18,564	Poor
Navigation Blvd over UPRR Terminal N Mack St	1970	17,800	Poor
Lee Rd over Hcfcd Ditch	1954	9,720	Poor
Kirkwood Dr NB over Keegans Byu	1970	6,965	Poor
IH45 SB Mckiney Ex over Buffalo Byu/ih 45 NB	1962	6,871	Poor
Campbell Rd over Hcfcd Ditch	1997	4,000	Poor
Van Fleet St over Hcfcd Ditch	1996	3,600	Poor
Flamborough Dr over Hcfcd Ditch	1995	2,740	Poor
Lake Houston Pkwy over Coh Freshwater Canal	1955	2,532	Poor
W 15TH St over Hcfcd Ditch	1993	2,500	Poor
Enid St over Little White Oak Bayou	1943	1,500	Poor
Laura Koppe Rd over Ditch	1997	1,235	Poor
Emile St over Japhet Creek	1991	1,000	Poor
Glenhaven Dr over Poor Farm Ditch	1951	1,000	Poor
Carolwood over Kennedy Gully	1997	901	Poor
Baca St over Hcfcd Ditch	1998	500	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
Ih 10 over Drain	2007	405,615	Good
Ih 10 over Rummel Creek	2007	387,238	Good
Ih 10 over Rummel Creek & Trib	2007	387,238	Good
IH 10/Campbell Rd over Drainage Ditch	2005	373,095	Good
Ih 10 over Hcfcd Ditch	2006	333,229	Good
House-hahl Road over Big Cypress Creek	2015	307,170	Good
Ih 10 Ebfr over Langham Creek	2007	301,466	Good
US 290 EB Ml over W 34TH St	2016	273,500	Good
Ih 10 over Briar Branch	2006	265,257	Fair
IH10 Hov/toll Ramp over Metro Park and Ride Row	2007	259,457	Fair

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

All of Texas: Texas bridge conditions by county · every download on the data page.

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