US Bridges

Prospect Road over New Mercer Canal

Good

Larimer County, Colorado · 0.1 MI E of Brentwood DR · Structure no. FCPRST-0.1BRTWA

Built
2014
11 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
15,960
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Prospect Road over New Mercer Canal is a concrete culvert carrying Prospect Road over New Mercer Canal in Larimer County, Colorado. It was built in 2014, so it is 11 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 15,960 vehicles a day, roughly 7% of them trucks, projected to reach 19,950 by 2042. The structure is 24 ft (7.4 m) long and 89 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesProspect Road
CrossesNew Mercer Canal
Location0.1 MI E of Brentwood DR
RouteCity Street 0
CountyLarimer County
StateColorado
Coordinates40.56741, -105.10644
Functional classUrban Minor Arterial

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length24 ft (7.4 m)
Longest span24 ft (7.4 m)
Deck width89 ft (27 m)
Roadway width67 ft (20.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,960 (2023)
Projected traffic19,950 by 2042
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Prospect Road over New Mercer Canal built?

It was built in 2014, making it 11 years old in 2025.

What condition is Prospect Road over New Mercer Canal 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 Prospect Road over New Mercer Canal carry?

About 15,960 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Prospect Road over New Mercer Canal?

The structure is 24 ft (7.4 m) long with a longest span of 24 ft (7.4 m) and a deck 89 ft wide.

Who owns Prospect Road over New Mercer Canal?

It is owned by the City or Municipal Highway Agency.