US Bridges

County Road 1W over Slater Creek

Good

Routt County, Colorado · 0.3 MI S of CO RD 82 · Structure no. 107001W00.30752

Built
2012
13 years old
Condition
Good
inspected October 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
32 ft
1 main span
Daily traffic
24
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 1W over Slater Creek is a aluminum, wrought iron, or cast iron culvert carrying County Road 1W over Slater Creek in Routt County, Colorado. It was built in 2012, so it is 13 years old, younger 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 24 vehicles a day, roughly 16% of them trucks, projected to reach 29 by 2043. The structure is 32 ft (9.9 m) long and 36 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

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CarriesCounty Road 1W
CrossesSlater Creek
Location0.3 MI S of CO RD 82
RouteCounty Highway 0
CountyRoutt County
StateColorado
Coordinates40.85068, -107.28886
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46 US tons
Inventory rating35.6 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length32 ft (9.9 m)
Longest span32 ft (9.9 m)
Deck width36 ft (11.1 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2023)
Projected traffic29 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 1W over Slater Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is County Road 1W over Slater 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 1W over Slater Creek carry?

About 24 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is County Road 1W over Slater Creek?

The structure is 32 ft (9.9 m) long with a longest span of 32 ft (9.9 m) and a deck 36 ft wide.

Who owns County Road 1W over Slater Creek?

It is owned by the County Highway Agency.