US Bridges

County Road 104 over Skull Creek

PoorPosted for load

Moffat County, Colorado · 1.2 MI West of US HWY 40 · Structure no. MOF104-05.90

Built
1930
95 years old
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
70 ft
3 main spans
Daily traffic
23
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 104 over Skull Creek is a wood or timber stringer/multi-beam or girder carrying County Road 104 over Skull Creek in Moffat County, Colorado. It was built in 1930, so it is 95 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 23 vehicles a day, roughly 26% of them trucks, projected to reach 27 by 2042. The structure is 70 ft (21.4 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 104
CrossesSkull Creek
Location1.2 MI West of US HWY 40
RouteCounty Highway 0
Coordinates40.26588, -108.67603
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12 US tons
Inventory rating7.1 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length70 ft (21.4 m)
Longest span22 ft (6.6 m)
Deck width26 ft (8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2023)
Projected traffic27 by 2042
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 104 over Skull Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is County Road 104 over Skull Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does County Road 104 over Skull Creek carry?

About 23 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is County Road 104 over Skull Creek?

The structure is 70 ft (21.4 m) long with a longest span of 22 ft (6.6 m) and a deck 26 ft wide.

Who owns County Road 104 over Skull Creek?

It is owned by the County Highway Agency.