Niobrara County, WY

34 public highway bridges

Niobrara County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Niobrara County, Wyoming contains 34 public highway bridges. Roughly 44.1% are rated “Good,” 52.9% “Fair,” and 2.9% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

34
Total Bridges
44.1%
Good
52.9%
Fair
2.9%
Poor Condition

Condition Distribution

Good
44.1% (15)
Fair
52.9% (18)
Poor
2.9% (1)

All Bridges (34)

Ni Cnty Rd 6

Fair

Over: Hungry Hollow

6 Mi W. Of Mule Crk Jct, Niobrara, WY

Built 1983 Load: 17.6 t ADT: 33

WYO 272

Fair

Over: Lance Creek

Jct WYO 270 - North, Niobrara, WY

Built 1969 Load: 29.0 t ADT: 27

US 18

Fair

Over: Old Woman Creek

Lusk - Mule Creek Jct, Niobrara, WY

Built 1971 Load: 29.9 t ADT: 2,115

Ni Cnty Rd 11

Fair

Over: Black Creek

12 Mi Sw Of Mule Crk Jct, Niobrara, WY

Built 1981 Load: 32.7 t ADT: 33

US 20

Fair

Over: C and NW Railroad

Lusk-Vantassel Road, Niobrara, WY

Built 1984 Load: 32.7 t ADT: 525

US 18

Fair

Over: Mule Creek

Lusk-Newcastle, Niobrara, WY

Built 1988 Load: 32.7 t ADT: 2,115

US 85

Fair

Over: Robbers Roost Creek

Mule Creek Jct-Newcastle, Niobrara, WY

Built 1992 Load: 32.7 t ADT: 1,079

WYO 270

Fair

Over: Provost Draw

Lance Creek East Section, Niobrara, WY

Built 2004 Load: 32.7 t ADT: 208

Ni Cnty Rd 13

Fair

Over: Lance Creek

2 Miles N.E. Of Cow Creek, Niobrara, WY

Built 1983 Load: 33.6 t ADT: 17

US 18

Fair

Over: Old Woman Creek

Lusk - Newcastle, Niobrara, WY

Built 1987 Load: 34.5 t ADT: 2,115

US 85

Fair

Over: Cheyenne River

Mule Creek Jct-Newcastle, Niobrara, WY

Built 1990 Load: 38.1 t ADT: 1,079

Ni Cnty Rd 14

Fair

Over: Lightning Creek

N. Lance Creek Road, Niobrara, WY

Built 1994 Load: 40.8 t ADT: 29

Ni Cnty Rd 14

Fair

Over: Cow Creek

N. Lance Creek Road, Niobrara, WY

Built 1994 Load: 40.8 t ADT: 29

Ni Cnty Rd 18

Fair

Over: Sage Creek

14 Mi Ne Of Lusk, Niobrara, WY

Built 1997 Load: 44.5 t ADT: 31

WYO 270

Fair

Over: Cherry Creek

Lance Creek-South, Niobrara, WY

Built 1995 Load: 46.3 t ADT: 281

US 20

Fair

Over: Niobrara River

Lusk Streets, 3Rd Street, Niobrara, WY

Built 2003 Load: 52.9 t ADT: 970

Ni Cnty Rd 6

Fair

Over: Alkali Creek

3 Mi. Nw Of Mule Crk Jct, Niobrara, WY

Built 1997 Load: 53.5 t ADT: 33

US 18

Fair

Over: Niobrara River

Lusk, Niobrara, WY

Built 1988 Load: 58.1 t ADT: 3,162

Ni Cnty Rd 64

Good

Over: South Indian Creek

8 Miles E. Of Hat Creek, Niobrara, WY

Built 1958 Load: 20.6 t ADT: 40

W Pershing Street

Good

Over: Niobrara River

Lusk Streets, Niobrara, WY

Built 1991 Load: 32.4 t ADT: 314

US 85

Good

Over: UPRR

Lusk Streets, Niobrara, WY

Built 2016 Load: 32.4 t ADT: 3,162

Daley Street

Good

Over: Niobrara River

Lusk, Niobrara, WY

Built 1986 Load: 32.7 t ADT: 340

US 85

Good

Over: Bobcat Creek

Mule Creek Jct-Newcastle, Niobrara, WY

Built 1991 Load: 32.7 t ADT: 1,079

US 18

Good

Over: Stockpass

Orin Jct-Lusk, Niobrara, WY

Built 1970 Load: 32.7 t ADT: 2,387

WYO 270

Good

Over: Unnamed Draw

Manville South, Niobrara, WY

Built 1956 Load: 32.7 t ADT: 275

US 20

Good

Over: S Fork Niobrara River

Lusk - Nebr. State Line, Niobrara, WY

Built 1986 Load: 33.6 t ADT: 525

US 20

Good

Over: Van Tassell Creek

Lusk - Nebr. Line, Niobrara, WY

Built 1986 Load: 34.5 t ADT: 534

Ni Cnty Rd 50

Good

Over: Lightning Creek

Kaye Field Road, Niobrara, WY

Built 1994 Load: 40.8 t ADT: 24

US 20

Good

Over: Niobrara River

Lusk - Nebr Line, Niobrara, WY

Built 2019 Load: 46.0 t ADT: 534

WYO 271

Good

Over: Lance Creek

.17 Mi West Of Lance Cree, Niobrara, WY

Built 2003 Load: 47.2 t ADT: 39

Ni Cnty Rd 11

Good

Over: Lance Creek

12 Mi SW of mule Crk Jct, Niobrara, WY

Built 2017 Load: 48.3 t ADT: 33

WYO 271

Good

Over: Little Lightning Creek

3 Mi West Of Lance Creek, Niobrara, WY

Built 2003 Load: 49.9 t ADT: 39

WYO 270

Good

Over: Old Woman Creek

Lance Creek East Road, Niobrara, WY

Built 2007 Load: 68.0 t ADT: 208

Ni Cnty Rd 9

Poor

Over: Cheyenne River

6 Mi. N.E.Of Mule Crk Jct, Niobrara, WY

Built 1920 Load: 27.1 t ADT: 5
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.