US Bridges

N Street over Bitter Creek

Poor

Sweetwater County, Wyoming · Rock Springs Streets · Structure no. EPH

Built
1976
49 years old
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
83 ft
1 main span
Daily traffic
928
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Street over Bitter Creek is a steel stringer/multi-beam or girder carrying N Street over Bitter Creek in Sweetwater County, Wyoming. It was built in 1976, so it is 49 years old, older than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 928 vehicles a day, roughly 12% of them trucks, projected to reach 1,299 by 2043. The structure is 83 ft (25.3 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesN Street
CrossesBitter Creek
LocationRock Springs Streets
RouteCity Street 390-1
StateWyoming
Coordinates41.59355, -109.21816
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.1 US tons
Inventory rating32.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length83 ft (25.3 m)
Longest span80 ft (24.4 m)
Deck width37 ft (11.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic928 (2024)
Projected traffic1,299 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$56,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N Street over Bitter Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is N Street over Bitter Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does N Street over Bitter Creek carry?

About 928 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is N Street over Bitter Creek?

The structure is 83 ft (25.3 m) long with a longest span of 80 ft (24.4 m) and a deck 37 ft wide.

Who owns N Street over Bitter Creek?

It is owned by the City or Municipal Highway Agency.