US Bridges

NFSR 112.0 over South ST Vrain Creek

Good

Boulder County, Colorado · W. Side of Brainard Lake · Structure no. 021001000015812

Built
2011
14 years old
Condition
Good
inspected September 2024
Type
Frame
Concrete
Length
26 ft
1 main span
Daily traffic
200
2011 count
Owner
Federal
U.S. Forest Service

About this bridge

NFSR 112.0 over South ST Vrain Creek is a concrete frame carrying NFSR 112.0 over South ST Vrain Creek in Boulder County, Colorado. It was built in 2011, so it is 14 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, roughly 1% of them trucks, projected to reach 300 by 2045. The structure is 26 ft (7.8 m) long and 32 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNFSR 112.0
CrossesSouth ST Vrain Creek
LocationW. Side of Brainard Lake
RouteFederal Lands Road 112
Coordinates40.07876, -105.57879
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length26 ft (7.8 m)
Longest span24 ft (7.3 m)
Deck width32 ft (9.8 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2011)
Projected traffic300 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NFSR 112.0 over South ST Vrain Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is NFSR 112.0 over South ST Vrain Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does NFSR 112.0 over South ST Vrain Creek carry?

About 200 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is NFSR 112.0 over South ST Vrain Creek?

The structure is 26 ft (7.8 m) long with a longest span of 24 ft (7.3 m) and a deck 32 ft wide.

Who owns NFSR 112.0 over South ST Vrain Creek?

It is owned by the U.S. Forest Service.