US Bridges

US 85 Ml Sbnd over Larimer-Weld Canal

Good

Weld County, Colorado · 0.7 MI S of JCT SH 14 · Structure no. B-18-C

Built
1966
59 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Concrete
Length
32 ft
1 main span
Daily traffic
4,250
2020 count
Owner
State
State Highway Agency

About this bridge

US 85 Ml Sbnd over Larimer-Weld Canal is a concrete tee beam carrying US 85 Ml Sbnd over Larimer-Weld Canal in Weld 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,250 vehicles a day, roughly 13% of them trucks, projected to reach 4,973 by 2040. The structure is 32 ft (9.9 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 85 Ml Sbnd
CrossesLarimer-Weld Canal
Location0.7 MI S of JCT SH 14
RouteU.S. Route 85L
Coordinates40.56767, -104.72716
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.9 US tons
Inventory rating37.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length32 ft (9.9 m)
Longest span30 ft (9 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,250 (2020)
Projected traffic4,973 by 2040
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 US 85 Ml Sbnd over Larimer-Weld Canal built?

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

What condition is US 85 Ml Sbnd over Larimer-Weld 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 November 2023.

How much traffic does US 85 Ml Sbnd over Larimer-Weld Canal carry?

About 4,250 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is US 85 Ml Sbnd over Larimer-Weld Canal?

The structure is 32 ft (9.9 m) long with a longest span of 30 ft (9 m) and a deck 42 ft wide.

Who owns US 85 Ml Sbnd over Larimer-Weld Canal?

It is owned by the State Highway Agency.