US Bridges

County Road 104 over Miller Creek

FairPosted for load

Moffat County, Colorado · 2.8 MI East of US HWY 40 · Structure no. MOF104-04.30

Built
1930
95 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
71 ft
3 main spans
Daily traffic
18
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 104 over Miller Creek is a wood or timber stringer/multi-beam or girder carrying County Road 104 over Miller 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 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. Its operating status is: posted for load restriction.

It carries about 18 vehicles a day, roughly 36% of them trucks, projected to reach 21 by 2042. The structure is 71 ft (21.5 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 104
CrossesMiller Creek
Location2.8 MI East of US HWY 40
RouteCounty Highway 0
CountyMoffat County
StateColorado
Coordinates40.26048, -108.70434
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating13.9 US tons
Inventory rating9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length71 ft (21.5 m)
Longest span22 ft (6.7 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18 (2023)
Projected traffic21 by 2042
Trucks36%
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$179,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 104 over Miller Creek built?

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

What condition is County Road 104 over Miller 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 October 2023.

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

About 18 vehicles per day (2023 count), of which roughly 36% are trucks.

How long is County Road 104 over Miller Creek?

The structure is 71 ft (21.5 m) long with a longest span of 22 ft (6.7 m) and a deck 26 ft wide.

Who owns County Road 104 over Miller Creek?

It is owned by the County Highway Agency.