US Bridges

US 34 Ml Wbnd over US 85 Bus Rt

Poor

Weld County, Colorado · In Evans · Structure no. C-18-AP

Built
1962
63 years old
Condition
Poor
inspected August 2023
Type
Tee Beam
Concrete Continuous
Length
233 ft
4 main spans
Daily traffic
16,500
2020 count
Owner
State
State Highway Agency

About this bridge

US 34 Ml Wbnd over US 85 Bus Rt is a concrete continuous tee beam carrying US 34 Ml Wbnd over US 85 Bus Rt in Weld County, Colorado. It was built in 1962, so it is 63 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 16,500 vehicles a day, roughly 6% of them trucks, projected to reach 23,595 by 2040. The structure is 233 ft (70.9 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 34 Ml Wbnd
CrossesUS 85 Bus Rt
LocationIn Evans
RouteU.S. Route 34A
Coordinates40.39199, -104.68788
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckOther
Main spans4
Design loadHS 20
Structure length233 ft (70.9 m)
Longest span65 ft (19.8 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,500 (2020)
Projected traffic23,595 by 2040
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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$554,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 34 Ml Wbnd over US 85 Bus Rt built?

It was built in 1962, making it 63 years old in 2025.

What condition is US 34 Ml Wbnd over US 85 Bus Rt in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

How much traffic does US 34 Ml Wbnd over US 85 Bus Rt carry?

About 16,500 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is US 34 Ml Wbnd over US 85 Bus Rt?

The structure is 233 ft (70.9 m) long with a longest span of 65 ft (19.8 m) and a deck 44 ft wide.

Who owns US 34 Ml Wbnd over US 85 Bus Rt?

It is owned by the State Highway Agency.