US Bridges

I 25 Service RD over Larimer County Canal SR

Fair

Larimer County, Colorado · 5 MI N of JCT SH 14 · Structure no. B-16-BU

Built
1966
59 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
34 ft
1 main span
Daily traffic
1,911
2023 count
Owner
State
State Highway Agency

About this bridge

I 25 Service RD over Larimer County Canal SR is a concrete tee beam carrying I 25 Service RD over Larimer County Canal SR in Larimer County, Colorado. It was built in 1966, so it is 59 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,911 vehicles a day, roughly 19% of them trucks, projected to reach 2,389 by 2042. The structure is 34 ft (10.4 m) long and 27 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI 25 Service RD
CrossesLarimer County Canal SR
Location5 MI N of JCT SH 14
RouteInterstate 25A
CountyLarimer County
StateColorado
Coordinates40.6559, -105.00126
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating31.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length34 ft (10.4 m)
Longest span31 ft (9.4 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,911 (2023)
Projected traffic2,389 by 2042
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I 25 Service RD over Larimer County Canal SR built?

It was built in 1966, making it 59 years old in 2025.

What condition is I 25 Service RD over Larimer County Canal SR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does I 25 Service RD over Larimer County Canal SR carry?

About 1,911 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is I 25 Service RD over Larimer County Canal SR?

The structure is 34 ft (10.4 m) long with a longest span of 31 ft (9.4 m) and a deck 27 ft wide.

Who owns I 25 Service RD over Larimer County Canal SR?

It is owned by the State Highway Agency.