US Bridges

I 70 Ml over Clear Creek

Fair

Clear Creek County, Colorado · 3.4 MI E of JCT SH 103 · Structure no. F-15-BX

Built
1999
26 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
301 ft
3 main spans
Daily traffic
47,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml over Clear Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying I 70 Ml over Clear Creek in Clear Creek County, Colorado. It was built in 1999, so it is 26 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 47,000 vehicles a day, roughly 7% of them trucks, projected to reach 58,280 by 2040. The structure is 301 ft (91.8 m) long and 117 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml
CrossesClear Creek
Location3.4 MI E of JCT SH 103
RouteInterstate 70A
Coordinates39.74605, -105.45997
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating83.7 US tons
Inventory rating49.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length301 ft (91.8 m)
Longest span99 ft (30.2 m)
Deck width117 ft (35.7 m)
Roadway width112 ft (34.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,000 (2020)
Projected traffic58,280 by 2040
Trucks7%
Lanes on structure5
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 Clear Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is I 70 Ml over Clear 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 January 2024.

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

About 47,000 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is I 70 Ml over Clear Creek?

The structure is 301 ft (91.8 m) long with a longest span of 99 ft (30.2 m) and a deck 117 ft wide.

Who owns I 70 Ml over Clear Creek?

It is owned by the State Highway Agency.