US Bridges

County Road 27 over Buckhorn Creek

Good

Larimer County, Colorado · 4.0 MI NW of CO RD 38E · Structure no. LR27-4.0-38E-A

Built
2015
10 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
682
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 27 over Buckhorn Creek is a prestressed concrete box beam or girders - single or spread carrying County Road 27 over Buckhorn Creek in Larimer County, Colorado. It was built in 2015, so it is 10 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 682 vehicles a day, roughly 22% of them trucks, projected to reach 852 by 2042. The structure is 80 ft (24.4 m) long and 39 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

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CarriesCounty Road 27
CrossesBuckhorn Creek
Location4.0 MI NW of CO RD 38E
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.52096, -105.25203
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating22.2 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length80 ft (24.4 m)
Longest span74 ft (22.6 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic682 (2023)
Projected traffic852 by 2042
Trucks22%
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 2015, making it 10 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 June 2023.

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

About 682 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is County Road 27 over Buckhorn Creek?

The structure is 80 ft (24.4 m) long with a longest span of 74 ft (22.6 m) and a deck 39 ft wide.

Who owns County Road 27 over Buckhorn Creek?

It is owned by the County Highway Agency.