US Bridges

County Road 29 over Dry Creek

Good

Larimer County, Colorado · 100 Ft N of CO RD 18E · Structure no. LR29-0.0-18E-A

Built
1986
39 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
3,219
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 29 over Dry Creek is a concrete culvert carrying County Road 29 over Dry Creek in Larimer County, Colorado. It was built in 1986, so it is 39 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 3,219 vehicles a day, roughly 22% of them trucks, projected to reach 4,024 by 2042. The structure is 44 ft (13.3 m) long and 60 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty Road 29
CrossesDry Creek
Location100 Ft N of CO RD 18E
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.38467, -105.19228
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.7 US tons
Inventory rating37.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.3 m)
Longest span16 ft (4.9 m)
Deck width60 ft (18.3 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,219 (2023)
Projected traffic4,024 by 2042
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 29 over Dry Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Road 29 over Dry 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 29 over Dry Creek carry?

About 3,219 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is County Road 29 over Dry Creek?

The structure is 44 ft (13.3 m) long with a longest span of 16 ft (4.9 m) and a deck 60 ft wide.

Who owns County Road 29 over Dry Creek?

It is owned by the County Highway Agency.