US Bridges

US 85 Ml over UP RR

Good

Weld County, Colorado · 5 Mi. S. of Greeley · Structure no. C-18-FB

Built
1994
31 years old
Condition
Good
inspected November 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
297 ft
3 main spans
Daily traffic
19,000
2020 count
Owner
State
State Highway Agency

About this bridge

US 85 Ml over UP RR is a prestressed concrete continuous stringer/multi-beam or girder carrying US 85 Ml over UP RR in Weld County, Colorado. It was built in 1994, so it is 31 years old, younger 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 19,000 vehicles a day, roughly 8% of them trucks, projected to reach 25,270 by 2040. The structure is 297 ft (90.4 m) long and 96 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 85 Ml
CrossesUP RR
Location5 Mi. S. of Greeley
RouteU.S. Route 85C
Coordinates40.34067, -104.71125
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.9 US tons
Inventory rating43.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length297 ft (90.4 m)
Longest span98 ft (30 m)
Deck width96 ft (29.2 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,000 (2020)
Projected traffic25,270 by 2040
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 85 Ml over UP RR built?

It was built in 1994, making it 31 years old in 2025.

What condition is US 85 Ml over UP RR 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 November 2021.

How much traffic does US 85 Ml over UP RR carry?

About 19,000 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is US 85 Ml over UP RR?

The structure is 297 ft (90.4 m) long with a longest span of 98 ft (30 m) and a deck 96 ft wide.

Who owns US 85 Ml over UP RR?

It is owned by the State Highway Agency.