US Bridges

County Road 8 over I 76 Ml BNSF RR

FairPosted for load

Weld County, Colorado · 5 MI E of JCT SH 7 · Structure no. D-18-BO

Built
1983
42 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
462 ft
3 main spans
Daily traffic
1,153
2023 count
Owner
State
State Highway Agency

About this bridge

County Road 8 over I 76 Ml BNSF RR is a steel continuous stringer/multi-beam or girder carrying County Road 8 over I 76 Ml BNSF RR in Weld County, Colorado. It was built in 1983, so it is 42 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 1,153 vehicles a day, projected to reach 1,637 by 2042. The structure is 462 ft (140.8 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesCounty Road 8
CrossesI 76 Ml BNSF RR
Location5 MI E of JCT SH 7
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.04458, -104.67147
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating13.9 US tons
Inventory rating7.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length462 ft (140.8 m)
Longest span177 ft (54 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,153 (2023)
Projected traffic1,637 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed6.2 mi (10 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 8 over I 76 Ml BNSF RR built?

It was built in 1983, making it 42 years old in 2025.

What condition is County Road 8 over I 76 Ml BNSF RR 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 8 over I 76 Ml BNSF RR carry?

About 1,153 vehicles per day (2023 count).

How long is County Road 8 over I 76 Ml BNSF RR?

The structure is 462 ft (140.8 m) long with a longest span of 177 ft (54 m) and a deck 36 ft wide.

Who owns County Road 8 over I 76 Ml BNSF RR?

It is owned by the State Highway Agency.