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Every bridge in Natrona County, Wyoming

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

135 inventoried bridges, busiest first

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

Natrona County, Wyoming, has 135 bridges in the 2025 National Bridge Inventory: 45 rated good, 85 fair, and 5 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
Wyo 220 over Garden Creek	2001	26,351	Fair
Wyo 220 over North Platte River	1969	14,749	Fair
Wyo 220 over BNSF Railway	1969	14,641	Fair
I-25 Sbl over North McKinley Street	1958	12,618	Fair
I-25 NBL and SBL over Walsh Drive	2022	12,577	Good
I-25 Nbl over North McKinley Street	1958	12,577	Fair
US 20 over North Platte River	1979	12,160	Fair
E 2nd Street over Claude Creek	2004	11,829	Good
E 2nd Street over Elkhorn Creek	2003	11,829	Good
WYO 258 (Wyo Blvd) over North Platte River	1974	11,746	Fair
US 20 over C and NW Railroad	1977	11,584	Fair
US 20 over Casper Creek	1977	11,584	Fair
I-25 Sbl over US 20 / 26 Connector	1984	11,193	Fair
N Beverly Street over I-25	1960	9,603	Fair
I-25 NBL and SBL over Center Street	2024	8,692	Good
I-25 Sbl over Wyo 220	1985	8,514	Fair
US 20/26/87 over I-25	1968	8,141	Fair
I-25 Nbl over US 20 / 26 Connector	1984	7,648	Fair
Na Cnty Rd 305 over North Platte River	2002	7,360	Fair
W 13th Street over Garden Creek	1992	6,962	Good
I-25 NBL and SBL over North Platte River	2024	6,857	Good
I-25 Nbl over Wyo 220	1985	6,857	Fair
W 25th Street over Garden Creek	1960	6,607	Good
I-25 Sbl over Na CR 600 (Blackmore)	1968	6,490	Fair
I-25 Sbl over WYO 258 (Wyoming Blvd)	2007	6,490	Good
I-25 Nbl over Na CR 600 (Blackmore)	1968	6,118	Fair
I-25 Nbl over WYO 258 (Wyoming Blvd)	2006	6,118	Good
US 20/26 Conn. EBL over BNSF / Casper Creek	1961	5,881	Fair
US 20/26 Conn. EBL over Na County Road 129	1960	5,881	Fair
Na Cnty Rd 305 over Unnamed Draw	2015	5,042	Good
US 20/26 Conn. WBL over BNSF / Casper Creek	1961	4,929	Fair
US 20/26 Conn. WBL over Na County Road 129	1960	4,929	Fair
W F Street over North Platte River	2024	4,929	Good
I-25 Sbl over Dry Muddy Creek	1966	4,838	Good
I-25 Sbl over Machinery Pass	1966	4,838	Fair
Wyo 254 over Casper Creek	1979	4,824	Fair
Wyo 254 over US 20 / 26 Connector	2015	4,824	Good
I-25 Nbl over Dry Muddy Creek	1966	4,312	Good
I-25 Nbl over Machinery Pass	1966	4,312	Fair
Wyo 253 over I-25	1968	4,190	Fair
Wyo 259 over Salt Creek	2000	3,919	Fair
Wyo 259 over Teapot Creek	1999	3,919	Fair
Wyo 259 over East Teapot Creek	1999	3,821	Fair
I-25 Sbl over Wardwell Road Intg	1964	3,548	Fair
I-25 Sbl over Westwinds Road	1964	3,548	Fair
I-25 Nbl over Wardwell Road Intg	1964	3,544	Fair
I-25 Nbl over Westwinds Road	1964	3,544	Fair
Wyo 220 over Bates Creek	1963	3,090	Fair
Wyo 220 over Casper Canal	1967	3,090	Poor
Wyo 220 over Eagle Creek	1967	3,090	Fair
Wyo 220 over North Platte River	2002	3,090	Fair
Wyo 220 over Cottonwood Creek	1965	3,058	Fair
Wyo 220 over Unnamed Draw	1970	3,058	Fair
Wyo 256 over North Platte River	1971	3,055	Fair
US 20/26/87 Ebl over Elkhorn Creek	1957	3,053	Good
US 20 over Casper Canal	1976	2,931	Good
US 20 over Johnson Canal	1976	2,931	Good
US 20 over Middle Fork Casper Creek	1984	2,931	Fair
US 20 over Middle Fork Casper Creek	1984	2,931	Fair
US 20 over Middle Fork Casper Creek	1984	2,931	Fair
US 20 over South Fork Casper Creek	1976	2,931	Good
Bryan Stock Trail over North Platte River	1982	2,887	Good
US 20/26/87 over Claude Creek	1957	2,851	Fair
I-25 Nbl over Machinery Pass	1972	2,751	Good
I-25 Nbl over Ormsby Road	1971	2,751	Good
I-25 Sbl over Machinery Pass	1972	2,721	Good
I-25 Sbl over Ormsby Road	1971	2,721	Good
US 20 over South Fork Powder River	1973	2,450	Fair
US 20 over Wyatt Draw	1973	2,450	Fair
US 20/26/87 Wbl over Elkhorn Creek	1957	2,411	Good
Wyo 220 over Horse Creek	1970	2,303	Fair
Wyo 387 over Coal Draw	1977	2,173	Fair
Wyo 220 over Dry Creek	1970	1,983	Fair
Wyo 220 over Rush Creek	1968	1,983	Fair
Wyo 220 over Sweetwater River	1970	1,983	Fair
I-25 Nbl over Dugout Creek	1979	1,749	Good
I-25 Nbl over I-25 Service Road	1980	1,749	Good
I-25 Nbl over Wyo 387	1980	1,749	Fair
I-25 Nbl over Castle Creek	1980	1,656	Good
I-25 Nbl over Machinery Pass	1980	1,656	Good
I-25 Nbl over Machinery Pass	1980	1,656	Fair
I-25 Nbl over South Fork Castle Creek	1981	1,656	Good
I-25 Nbl over Wyo 259	1976	1,656	Fair
I-25 Sbl over Dugout Creek	1979	1,647	Good
I-25 Sbl over I-25 Service Road	1980	1,647	Fair
I-25 Sbl over Na CR 115 (Smokey Gap)	1980	1,647	Fair
I-25 Sbl over Castle Creek	1980	1,520	Fair
I-25 Sbl over Machinery Pass	1980	1,520	Fair
I-25 Sbl over Machinery Pass	1980	1,520	Fair
I-25 Sbl over South Fork Castle Creek	1981	1,520	Good
I-25 Sbl over Wyo 259	1976	1,520	Fair
Wyo 257 over North Platte River	2013	1,073	Fair
Wyo 257 over Unnamed Draw	2013	1,073	Fair
Na Cnty Rd 110 over Cloud Creek	1924	1,070	Fair
Na Cnty Rd 201 over Poison Spider Creek	1991	949	Fair
Wyo 487 over Bates Creek	1981	935	Fair
Wyo 487 over Little Red Creek	1984	935	Good
Wyo 487 over Sand Creek	1981	935	Fair
Na Cnty Rd 131 over Salt Creek	2012	597	Good
Wyo 387 over Bothwell Draw	1952	428	Fair
Wyo 387 over Salt Creek	1952	428	Fair
I-25 Service Road over Dugout Creek	1957	302	Fair
Na Cnty Rd 308 over North Platte River	1997	281	Fair
US 20 Service Road over Elkhorn Creek	1957	181	Fair
Na Cnty Rd 412 over Hogback Draw	1929	165	Poor
Na Cnty Rd 412 over Mowrey Draw	1929	165	Fair
Ranch Road over I-25	2002	165	Good
Shepperson Road over I-25	1980	165	Good
Unnamed Road over I-25	1981	165	Good
Hereford Lane over I-25	1960	136	Poor
Na Cnty Rd 125 over Middle Fork Casper Creek	1973	124	Fair
VeteransCemeteryRd over North Platte River	1985	100	Fair
I-25 Service Road over Horse Creek	1950	85	Fair
I-25 Service Road over Sheep Creek	1950	85	Good
I-25 Service Road over Unnamed Draw	1948	85	Good
Na Cnty Rd 408 over North Platte River	1957	84	Fair
6902: Pathfinder R over North Platte River	1995	70	Fair
Na Cnty Rd 407 over North Platte River	2019	64	Fair
Na Cnty Rd 110 over South Fork Powder River	1977	53	Poor
Na Cnty Rd 402 over Bates Creek	2021	24	Good
Na Cnty Rd 402 over Corral Creek	1970	24	Fair
Na Cnty Rd 209 over M Casper Creek	1970	23	Fair
Na Cnty Rd 102 over Badwater Creek	1940	22	Poor
Na Cnty Rd 106 over BNSF Railway	2022	20	Good
Na Cnty Rd 106 over South Fork Powder River	1979	20	Fair
Na Cnty Rd 101 over Badwater Creek	1984	12	Fair
Na Cnty Rd 410 over Sweetwater River	1984	11	Fair
Na Cnty Rd 117 over Unnamed Draw	1967	6	Fair
Na Cnty Rd 316 over Casper Canal	2003	6	Good
Na Cnty Rd 316 over Casper Canal	2004	6	Good
Na Cnty Rd 319 over Casper Canal	1992	6	Good
Na Cnty Rd 319 over Casper Canal	1998	6	Good
Na Cnty Rd 319 over Casper Canal	1998	6	Good
Na Cnty Rd 403 over Bolton Creek	1994	2	Fair
Na Cnty Rd 403 over Stinking Creek	2007	2	Fair

Source: FHWA National Bridge Inventory, 2025.

Natrona County bridge conditions · Wyoming bridges by county.

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