US Bridges

County Road 8 over Ef Williams F Creek

Fair

Rio Blanco County, Colorado · .3 MI S of CR 19 · Structure no. RIOB-008-54.57

Built
1960
65 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
214
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 8 over Ef Williams F Creek is a concrete culvert carrying County Road 8 over Ef Williams F Creek in Rio Blanco County, Colorado. It was built in 1960, so it is 65 years old, older than the Colorado average of 42.2 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 214 vehicles a day, roughly 21% of them trucks, projected to reach 257 by 2043. The structure is 44 ft (13.3 m) long and 45 ft wide. If it were closed, the detour would be 80.2 mi (129 km).

Location

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CarriesCounty Road 8
CrossesEf Williams F Creek
Location.3 MI S of CR 19
RouteCounty Highway 0
CountyRio Blanco County
StateColorado
Coordinates40.1905, -107.21969
Functional classRural Major 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length44 ft (13.3 m)
Longest span14 ft (4.4 m)
Deck width45 ft (13.6 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic214 (2023)
Projected traffic257 by 2043
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed80.2 mi (129 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 8 over Ef Williams F Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is County Road 8 over Ef Williams F 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 September 2024.

How much traffic does County Road 8 over Ef Williams F Creek carry?

About 214 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is County Road 8 over Ef Williams F Creek?

The structure is 44 ft (13.3 m) long with a longest span of 14 ft (4.4 m) and a deck 45 ft wide.

Who owns County Road 8 over Ef Williams F Creek?

It is owned by the County Highway Agency.