US Bridges

County Roads over I 70 Ml

Fair

Clear Creek County, Colorado · 3.3 MI E of JCT US 40 · Structure no. E-14-AX

Built
1965
60 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete Continuous
Length
190 ft
4 main spans
Daily traffic
1,110
2024 count
Owner
State
State Highway Agency

About this bridge

County Roads over I 70 Ml is a concrete continuous tee beam carrying County Roads over I 70 Ml 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 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 1,110 vehicles a day, roughly 8% of them trucks, projected to reach 1,388 by 2044. The structure is 190 ft (57.9 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCounty Roads
CrossesI 70 Ml
Location3.3 MI E of JCT US 40
RouteCounty Highway 0
Coordinates39.76431, -105.59913
Functional classRural Minor Collector

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.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating39.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckOther
Main spans4
Design loadHS 20
Structure length190 ft (57.9 m)
Longest span52 ft (16 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,110 (2024)
Projected traffic1,388 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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 County Roads over I 70 Ml built?

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

What condition is County Roads over I 70 Ml 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 August 2023.

How much traffic does County Roads over I 70 Ml carry?

About 1,110 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is County Roads over I 70 Ml?

The structure is 190 ft (57.9 m) long with a longest span of 52 ft (16 m) and a deck 32 ft wide.

Who owns County Roads over I 70 Ml?

It is owned by the State Highway Agency.