US Bridges

Wyo 270 over Old Woman Creek

Fair

Niobrara County, Wyoming · Lance Creek East Road · Structure no. LUI

Built
2007
18 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
150 ft
3 main spans
Daily traffic
191
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 270 over Old Woman Creek is a steel continuous stringer/multi-beam or girder carrying Wyo 270 over Old Woman Creek in Niobrara County, Wyoming. It was built in 2007, so it is 18 years old, younger than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 191 vehicles a day, roughly 27% of them trucks, projected to reach 267 by 2043. The structure is 150 ft (45.7 m) long and 35 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesWyo 270
CrossesOld Woman Creek
LocationLance Creek East Road
RouteState Highway 270
StateWyoming
Coordinates43.04423, -104.38264
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating75 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length150 ft (45.7 m)
Longest span59 ft (18 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic191 (2024)
Projected traffic267 by 2043
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wyo 270 over Old Woman Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Wyo 270 over Old Woman Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.

How much traffic does Wyo 270 over Old Woman Creek carry?

About 191 vehicles per day (2024 count), of which roughly 27% are trucks.

How long is Wyo 270 over Old Woman Creek?

The structure is 150 ft (45.7 m) long with a longest span of 59 ft (18 m) and a deck 35 ft wide.

Who owns Wyo 270 over Old Woman Creek?

It is owned by the State Highway Agency.