US Bridges

Spring Drive over Killpecker Creek

Fair

Sweetwater County, Wyoming · Rock Springs · Structure no. ETQ

Built
1975
50 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
1,230
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Spring Drive over Killpecker Creek is a steel stringer/multi-beam or girder carrying Spring Drive over Killpecker Creek in Sweetwater County, Wyoming. It was built in 1975, so it is 50 years old, older 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 5 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 1,230 vehicles a day, roughly 4% of them trucks, projected to reach 1,722 by 2043. The structure is 63 ft (19.2 m) long and 33 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSpring Drive
CrossesKillpecker Creek
LocationRock Springs
RouteCity Street 390-2
CountySweetwater County
StateWyoming
Coordinates41.59884, -109.23238
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span60 ft (18.3 m)
Deck width33 ft (10.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,230 (2024)
Projected traffic1,722 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 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$44,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Spring Drive over Killpecker Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Spring Drive over Killpecker 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 May 2023.

How much traffic does Spring Drive over Killpecker Creek carry?

About 1,230 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Spring Drive over Killpecker Creek?

The structure is 63 ft (19.2 m) long with a longest span of 60 ft (18.3 m) and a deck 33 ft wide.

Who owns Spring Drive over Killpecker Creek?

It is owned by the City or Municipal Highway Agency.