US Bridges

US 34 Ml over North Fork Colorado Rive

Fair

Grand County, Colorado · 11.9 Miles North of JCT U · Structure no. D-13-Y

Built
2018
7 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
118 ft
1 main span
Daily traffic
6,200
2020 count
Owner
State
State Highway Agency

About this bridge

US 34 Ml over North Fork Colorado Rive is a prestressed concrete stringer/multi-beam or girder carrying US 34 Ml over North Fork Colorado Rive in Grand County, Colorado. It was built in 2018, so it is 7 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.

It carries about 6,200 vehicles a day, roughly 4% of them trucks, projected to reach 7,316 by 2040. The structure is 118 ft (36.1 m) long and 47 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

CarriesUS 34 Ml
CrossesNorth Fork Colorado Rive
Location11.9 Miles North of JCT U
RouteU.S. Route 34A
Coordinates40.21933, -105.8586
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length118 ft (36.1 m)
Longest span114 ft (34.6 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,200 (2020)
Projected traffic7,316 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 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 34 Ml over North Fork Colorado Rive built?

It was built in 2018, making it 7 years old in 2025.

What condition is US 34 Ml over North Fork Colorado Rive 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 September 2024.

How much traffic does US 34 Ml over North Fork Colorado Rive carry?

About 6,200 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is US 34 Ml over North Fork Colorado Rive?

The structure is 118 ft (36.1 m) long with a longest span of 114 ft (34.6 m) and a deck 47 ft wide.

Who owns US 34 Ml over North Fork Colorado Rive?

It is owned by the State Highway Agency.