US Bridges

Ramp to Shoshone over I 70 Colorado River R

Fair

Garfield County, Colorado · Power Plant Interchange ( · Structure no. F-08-BC

Built
1987
38 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
1,116 ft
8 main spans
Daily traffic
148
2023 count
Owner
State
State Highway Agency

About this bridge

Ramp to Shoshone over I 70 Colorado River R is a steel continuous box beam or girders - single or spread carrying Ramp to Shoshone over I 70 Colorado River R in Garfield County, Colorado. It was built in 1987, so it is 38 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 148 vehicles a day, roughly 13% of them trucks, projected to reach 188 by 2042. The structure is 1,116 ft (340.2 m) long and 22 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRamp to Shoshone
CrossesI 70 Colorado River R
LocationPower Plant Interchange (
RouteInterstate 70A
Coordinates39.56665, -107.23231
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHL 93
Structure length1,116 ft (340.2 m)
Longest span150 ft (45.7 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic148 (2023)
Projected traffic188 by 2042
Trucks13%
Lanes on structure1
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 Ramp to Shoshone over I 70 Colorado River R built?

It was built in 1987, making it 38 years old in 2025.

What condition is Ramp to Shoshone over I 70 Colorado River R 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 May 2024.

How much traffic does Ramp to Shoshone over I 70 Colorado River R carry?

About 148 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Ramp to Shoshone over I 70 Colorado River R?

The structure is 1,116 ft (340.2 m) long with a longest span of 150 ft (45.7 m) and a deck 22 ft wide.

Who owns Ramp to Shoshone over I 70 Colorado River R?

It is owned by the State Highway Agency.