US Bridges

Rollingstone Lane over Fish Creek

Fair

Routt County, Colorado · 150 Ft N of Pine Grove · Structure no. 1250.11

Built
1990
35 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
2,404
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Rollingstone Lane over Fish Creek is a prestressed concrete tee beam carrying Rollingstone Lane over Fish Creek in Routt County, Colorado. It was built in 1990, so it is 35 years old, younger 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 2,404 vehicles a day, roughly 16% of them trucks, projected to reach 2,861 by 2042. The structure is 52 ft (15.8 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRollingstone Lane
CrossesFish Creek
Location150 Ft N of Pine Grove
RouteCity Street 0
Coordinates40.46559, -106.8222
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span50 ft (15.2 m)
Deck width39 ft (12 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,404 (2023)
Projected traffic2,861 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Rollingstone Lane over Fish Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Rollingstone Lane over Fish 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 2024.

How much traffic does Rollingstone Lane over Fish Creek carry?

About 2,404 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Rollingstone Lane over Fish Creek?

The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 39 ft wide.

Who owns Rollingstone Lane over Fish Creek?

It is owned by the City or Municipal Highway Agency.