US Bridges

Spruce Street over Blacks Fork River

Fair

Sweetwater County, Wyoming · Spruce Street · Structure no. FAV

Built
1984
41 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
145 ft
1 main span
Daily traffic
120
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Spruce Street over Blacks Fork River is a prestressed concrete stringer/multi-beam or girder carrying Spruce Street over Blacks Fork River in Sweetwater County, Wyoming. It was built in 1984, so it is 41 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 120 vehicles a day, roughly 13% of them trucks, projected to reach 168 by 2043. The structure is 145 ft (44.2 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSpruce Street
CrossesBlacks Fork River
LocationSpruce Street
RouteCity Street 0
StateWyoming
Coordinates41.58945, -109.96824
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than 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 alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span140 ft (42.7 m)
Deck width36 ft (11 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2024)
Projected traffic168 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$22,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Spruce Street over Blacks Fork River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Spruce Street over Blacks Fork River 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 August 2024.

How much traffic does Spruce Street over Blacks Fork River carry?

About 120 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Spruce Street over Blacks Fork River?

The structure is 145 ft (44.2 m) long with a longest span of 140 ft (42.7 m) and a deck 36 ft wide.

Who owns Spruce Street over Blacks Fork River?

It is owned by the Town or Township Highway Agency.