US Bridges

I 70 Ml Wbnd over Colorado River

Fair

Garfield County, Colorado · 1.1 MI W of Silt Spur · Structure no. F-06-Z

Built
1975
50 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
444 ft
5 main spans
Daily traffic
10,500
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml Wbnd over Colorado River is a steel continuous stringer/multi-beam or girder carrying I 70 Ml Wbnd over Colorado River in Garfield County, Colorado. It was built in 1975, so it is 50 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 10,500 vehicles a day, roughly 11% of them trucks, projected to reach 13,965 by 2040. The structure is 444 ft (135.4 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml Wbnd
CrossesColorado River
Location1.1 MI W of Silt Spur
RouteInterstate 70A
Coordinates39.54285, -107.67361
Functional classRural Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length444 ft (135.4 m)
Longest span100 ft (30.5 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2020)
Projected traffic13,965 by 2040
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I 70 Ml Wbnd over Colorado River built?

It was built in 1975, making it 50 years old in 2025.

What condition is I 70 Ml Wbnd over Colorado River 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 October 2024.

How much traffic does I 70 Ml Wbnd over Colorado River carry?

About 10,500 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is I 70 Ml Wbnd over Colorado River?

The structure is 444 ft (135.4 m) long with a longest span of 100 ft (30.5 m) and a deck 45 ft wide.

Who owns I 70 Ml Wbnd over Colorado River?

It is owned by the State Highway Agency.