US Bridges

US 85 Ml Nbnd over SH 7 Ml

Fair

Adams County, Colorado · Brighton · Structure no. E-17-JD

Built
1965
60 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
168 ft
2 main spans
Daily traffic
15,500
2020 count
Owner
State
State Highway Agency

About this bridge

US 85 Ml Nbnd over SH 7 Ml is a steel stringer/multi-beam or girder carrying US 85 Ml Nbnd over SH 7 Ml in Adams County, Colorado. It was built in 1965, so it is 60 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 15,500 vehicles a day, roughly 9% of them trucks, projected to reach 22,320 by 2040. The structure is 168 ft (51.3 m) long and 34 ft wide.

CarriesUS 85 Ml Nbnd
CrossesSH 7 Ml
LocationBrighton
RouteU.S. Route 85C
Coordinates39.9866, -104.82366
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.5 US tons
Inventory rating36.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length168 ft (51.3 m)
Longest span82 ft (25 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,500 (2020)
Projected traffic22,320 by 2040
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$309,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 85 Ml Nbnd over SH 7 Ml built?

It was built in 1965, making it 60 years old in 2025.

What condition is US 85 Ml Nbnd over SH 7 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 2024.

How much traffic does US 85 Ml Nbnd over SH 7 Ml carry?

About 15,500 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is US 85 Ml Nbnd over SH 7 Ml?

The structure is 168 ft (51.3 m) long with a longest span of 82 ft (25 m) and a deck 34 ft wide.

Who owns US 85 Ml Nbnd over SH 7 Ml?

It is owned by the State Highway Agency.