US Bridges

I 76 Ml over Sequine Gulch

Fair

Weld County, Colorado · 5.4 MI NE of JCT SH 7 · Structure no. D-18-I

Built
1935
90 years old, rebuilt 1981
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
23,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 76 Ml over Sequine Gulch is a concrete culvert carrying I 76 Ml over Sequine Gulch in Weld County, Colorado. It was built in 1935 and reconstructed in 1981, so it is 90 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 23,000 vehicles a day, roughly 18% of them trucks, projected to reach 37,260 by 2040. The structure is 21 ft (6.4 m) long and 147 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 76 Ml
CrossesSequine Gulch
Location5.4 MI NE of JCT SH 7
RouteInterstate 76A
Coordinates40.04587, -104.66935
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width147 ft (44.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,000 (2020)
Projected traffic37,260 by 2040
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
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 76 Ml over Sequine Gulch built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1981.

What condition is I 76 Ml over Sequine Gulch 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 February 2025.

How much traffic does I 76 Ml over Sequine Gulch carry?

About 23,000 vehicles per day (2020 count), of which roughly 18% are trucks.

How long is I 76 Ml over Sequine Gulch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 147 ft wide.

Who owns I 76 Ml over Sequine Gulch?

It is owned by the State Highway Agency.