US Bridges

I 76 Ml over Big Beaver Creek

Good

Morgan County, Colorado · 1.7 MI NE of JCT SH 71 B · Structure no. C-22-BF

Built
1961
64 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
12,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 76 Ml over Big Beaver Creek is a concrete culvert carrying I 76 Ml over Big Beaver Creek in Morgan County, Colorado. It was built in 1961, so it is 64 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 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 12,000 vehicles a day, roughly 18% of them trucks, projected to reach 15,480 by 2040. The structure is 21 ft (6.4 m) long and 250 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI 76 Ml
CrossesBig Beaver Creek
Location1.7 MI NE of JCT SH 71 B
RouteInterstate 76A
Coordinates40.2702, -103.58868
Functional classRural Principal Arterial - Interstate

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 protection7 GoodSome minor problems.
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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.9 US tons
Inventory rating99.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width250 ft (76.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2020)
Projected traffic15,480 by 2040
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Big Beaver Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is I 76 Ml over Big Beaver 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 June 2023.

How much traffic does I 76 Ml over Big Beaver Creek carry?

About 12,000 vehicles per day (2020 count), of which roughly 18% are trucks.

How long is I 76 Ml over Big Beaver Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 250 ft wide.

Who owns I 76 Ml over Big Beaver Creek?

It is owned by the State Highway Agency.