US Bridges

County Road 36 over Soda Creek

Good

Routt County, Colorado · 1.8 MI N of Amethyst DR · Structure no. 107003603.50922

Built
1979
46 years old, rebuilt 2003
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
34 ft
1 main span
Daily traffic
922
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 36 over Soda Creek is a steel stringer/multi-beam or girder carrying County Road 36 over Soda Creek in Routt County, Colorado. It was built in 1979 and reconstructed in 2003, so it is 46 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 922 vehicles a day, roughly 20% of them trucks, projected to reach 1,097 by 2042. The structure is 34 ft (10.4 m) long and 29 ft wide. If it were closed, the detour would be 78.9 mi (127 km).

Location

Open in Google Maps
CarriesCounty Road 36
CrossesSoda Creek
Location1.8 MI N of Amethyst DR
RouteCounty Highway 0
CountyRoutt County
StateColorado
Coordinates40.52694, -106.82262
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating22.3 US tons
Inventory rating13.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic922 (2023)
Projected traffic1,097 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed78.9 mi (127 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$189,000 (2018 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Road 36 over Soda Creek built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2003.

What condition is County Road 36 over Soda Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does County Road 36 over Soda Creek carry?

About 922 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is County Road 36 over Soda Creek?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 29 ft wide.

Who owns County Road 36 over Soda Creek?

It is owned by the County Highway Agency.