US Bridges

County Road 27 over Buckhorn Creek

Good

Larimer County, Colorado · 0.8 MI NW of CO RD 38E · Structure no. LR27-0.8-38E-A

Built
1993
32 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
124 ft
2 main spans
Daily traffic
806
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 27 over Buckhorn Creek is a prestressed concrete continuous box beam or girders - single or spread carrying County Road 27 over Buckhorn Creek in Larimer County, Colorado. It was built in 1993, so it is 32 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 806 vehicles a day, roughly 24% of them trucks, projected to reach 1,008 by 2042. The structure is 124 ft (37.8 m) long and 38 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesCounty Road 27
CrossesBuckhorn Creek
Location0.8 MI NW of CO RD 38E
RouteCounty Highway 0
Coordinates40.49322, -105.22072
Functional classRural Minor Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.8 US tons
Inventory rating26.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length124 ft (37.8 m)
Longest span59 ft (18.1 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic806 (2023)
Projected traffic1,008 by 2042
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 27 over Buckhorn Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is County Road 27 over Buckhorn 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 May 2023.

How much traffic does County Road 27 over Buckhorn Creek carry?

About 806 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is County Road 27 over Buckhorn Creek?

The structure is 124 ft (37.8 m) long with a longest span of 59 ft (18.1 m) and a deck 38 ft wide.

Who owns County Road 27 over Buckhorn Creek?

It is owned by the County Highway Agency.