US Bridges

I 70 Ml over Clear Creek

Poor

Clear Creek County, Colorado · 0.4 MI NE of JCT US 40 · Structure no. E-14-AV

Built
1965
60 years old
Condition
Poor
inspected October 2023
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
37,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml over Clear Creek is a concrete culvert carrying I 70 Ml over Clear Creek in Clear Creek County, Colorado. It was built in 1965, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 37,000 vehicles a day, roughly 8% of them trucks, projected to reach 45,510 by 2040. The structure is 29 ft (8.8 m) long and 166 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml
CrossesClear Creek
Location0.4 MI NE of JCT US 40
RouteInterstate 70A
Coordinates39.76091, -105.6492
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating65.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.2 m)
Deck width166 ft (50.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,000 (2020)
Projected traffic45,510 by 2040
Trucks8%
Lanes on structure7
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2.5 million (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I 70 Ml over Clear Creek built?

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

What condition is I 70 Ml over Clear Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

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

About 37,000 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is I 70 Ml over Clear Creek?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.2 m) and a deck 166 ft wide.

Who owns I 70 Ml over Clear Creek?

It is owned by the State Highway Agency.