US Bridges

I 70 Ml over Plateau Creek

Fair

Mesa County, Colorado · 0.1 MI E of JCT SH 65 Ml · Structure no. H-03-L

Built
1965
60 years old, rebuilt 1986
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
146 ft
3 main spans
Daily traffic
17,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml over Plateau Creek is a steel continuous stringer/multi-beam or girder carrying I 70 Ml over Plateau Creek in Mesa County, Colorado. It was built in 1965 and reconstructed in 1986, so it is 60 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 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 17,000 vehicles a day, roughly 14% of them trucks, projected to reach 21,760 by 2040. The structure is 146 ft (44.6 m) long and 72 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml
CrossesPlateau Creek
Location0.1 MI E of JCT SH 65 Ml
RouteInterstate 70A
Coordinates39.1832, -108.28053
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.2 US tons
Inventory rating31.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length146 ft (44.6 m)
Longest span48 ft (14.5 m)
Deck width72 ft (21.9 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,000 (2020)
Projected traffic21,760 by 2040
Trucks14%
Lanes on structure4
Traffic directionTwo-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 over Plateau Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1986.

What condition is I 70 Ml over Plateau Creek 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 November 2024.

How much traffic does I 70 Ml over Plateau Creek carry?

About 17,000 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is I 70 Ml over Plateau Creek?

The structure is 146 ft (44.6 m) long with a longest span of 48 ft (14.5 m) and a deck 72 ft wide.

Who owns I 70 Ml over Plateau Creek?

It is owned by the State Highway Agency.