US Bridges

County Road over I 76 Ml

Fair

Adams County, Colorado · Lochbuie Interchange · Structure no. E-18-AM

Built
1981
44 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
306 ft
2 main spans
Daily traffic
9,005
2024 count
Owner
State
State Highway Agency

About this bridge

County Road over I 76 Ml is a steel continuous stringer/multi-beam or girder carrying County Road over I 76 Ml in Adams County, Colorado. It was built in 1981, so it is 44 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 5 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 9,005 vehicles a day, projected to reach 11,707 by 2044. The structure is 306 ft (93.2 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty Road
CrossesI 76 Ml
LocationLochbuie Interchange
RouteCounty Highway 0
CountyAdams County
StateColorado
Coordinates40.00046, -104.71552
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating42.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length306 ft (93.2 m)
Longest span150 ft (45.7 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,005 (2024)
Projected traffic11,707 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 County Road over I 76 Ml built?

It was built in 1981, making it 44 years old in 2025.

What condition is County Road over I 76 Ml 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 County Road over I 76 Ml carry?

About 9,005 vehicles per day (2024 count).

How long is County Road over I 76 Ml?

The structure is 306 ft (93.2 m) long with a longest span of 150 ft (45.7 m) and a deck 47 ft wide.

Who owns County Road over I 76 Ml?

It is owned by the State Highway Agency.