US Bridges

County RD 25E over Redstone Creek

Good

Larimer County, Colorado · 0.9 MI N of Lazuli RD · Structure no. LR25E-5.7-38E

Built
2017
8 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
18
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 18 vehicles a day, projected to reach 23 by 2043. The structure is 28 ft (8.6 m) long and 59 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

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CarriesCounty RD 25E
CrossesRedstone Creek
Location0.9 MI N of Lazuli RD
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.57323, -105.23619
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 alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating42.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length28 ft (8.6 m)
Longest span28 ft (8.6 m)
Deck width59 ft (18.1 m)
Roadway width57 ft (17.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18 (2023)
Projected traffic23 by 2043
Trucks0%
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 18 vehicles per day (2023 count).

How long is County RD 25E over Redstone Creek?

The structure is 28 ft (8.6 m) long with a longest span of 28 ft (8.6 m) and a deck 59 ft wide.

Who owns County RD 25E over Redstone Creek?

It is owned by the County Highway Agency.