US Bridges

County RD 25E over Redstone Creek

Good

Larimer County, Colorado · Lazuli RD · Structure no. LR25E-4.8-38E

Built
2017
8 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
68
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 25E over Redstone Creek is a concrete culvert carrying County RD 25E over Redstone Creek in Larimer County, Colorado. It was built in 2017, so it is 8 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 68 vehicles a day, roughly 17% of them trucks, projected to reach 84 by 2043. The structure is 21 ft (6.5 m) long and 56 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
CarriesCounty RD 25E
CrossesRedstone Creek
LocationLazuli RD
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.56373, -105.22657
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.1 US tons
Inventory rating42.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length21 ft (6.5 m)
Longest span21 ft (6.5 m)
Deck width56 ft (17.2 m)
Roadway width54 ft (16.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic68 (2023)
Projected traffic84 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 RD 25E over Redstone Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is County RD 25E over Redstone 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 April 2023.

How much traffic does County RD 25E over Redstone Creek carry?

About 68 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is County RD 25E over Redstone Creek?

The structure is 21 ft (6.5 m) long with a longest span of 21 ft (6.5 m) and a deck 56 ft wide.

Who owns County RD 25E over Redstone Creek?

It is owned by the County Highway Agency.