US Bridges

Fdr 114 over Middle St. Vrain Creek

Good

Boulder County, Colorado · .2 MI W of CO HWY 72 · Structure no. 021004000001199

Built
1952
73 years old, rebuilt 1995
Condition
Good
inspected September 2024
Type
Slab
Wood or Timber
Length
31 ft
1 main span
Daily traffic
198
1992 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 114 over Middle St. Vrain Creek is a wood or timber slab carrying Fdr 114 over Middle St. Vrain Creek in Boulder County, Colorado. It was built in 1952 and reconstructed in 1995, so it is 73 years old, older 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 198 vehicles a day, roughly 4% of them trucks, projected to reach 336 by 2012. The structure is 31 ft (9.4 m) long and 15 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesFdr 114
CrossesMiddle St. Vrain Creek
Location.2 MI W of CO HWY 72
RouteFederal Lands Road 114.1
Coordinates40.13133, -105.50599
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 protection7 GoodSome minor problems.
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.4 US tons
Inventory rating58.2 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHL 93
Structure length31 ft (9.4 m)
Longest span30 ft (9.1 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic198 (1992)
Projected traffic336 by 2012
Trucks4%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$116,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 114 over Middle St. Vrain Creek built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1995.

What condition is Fdr 114 over Middle 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 Fdr 114 over Middle St. Vrain Creek carry?

About 198 vehicles per day (1992 count), of which roughly 4% are trucks.

How long is Fdr 114 over Middle St. Vrain Creek?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 15 ft wide.

Who owns Fdr 114 over Middle St. Vrain Creek?

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