US Bridges

County Road 61 over Fourmile Creek

Fair

Teller County, Colorado · Just S of Rainbow Valley · Structure no. TELL-04-3.00-01

Built
1936
89 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
219
2020 count
Owner
County
County Highway Agency

About this bridge

County Road 61 over Fourmile Creek is a steel stringer/multi-beam or girder carrying County Road 61 over Fourmile Creek in Teller County, Colorado. It was built in 1936, so it is 89 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 219 vehicles a day, roughly 5% of them trucks, projected to reach 265 by 2040. The structure is 31 ft (9.6 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty Road 61
CrossesFourmile Creek
LocationJust S of Rainbow Valley
RouteCounty Highway 0
CountyTeller County
StateColorado
Coordinates38.84271, -105.17206
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.4 US tons
Inventory rating23.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.6 m)
Longest span26 ft (8 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic219 (2020)
Projected traffic265 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 61 over Fourmile Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is County Road 61 over Fourmile 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 2023.

How much traffic does County Road 61 over Fourmile Creek carry?

About 219 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is County Road 61 over Fourmile Creek?

The structure is 31 ft (9.6 m) long with a longest span of 26 ft (8 m) and a deck 33 ft wide.

Who owns County Road 61 over Fourmile Creek?

It is owned by the County Highway Agency.