US Bridges

I 70 Ml over I 70 Buss Rt

Fair

Clear Creek County, Colorado · 7.4 MI E of JCT US 40 · Structure no. F-14-H

Built
1958
67 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
163 ft
3 main spans
Daily traffic
36,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml over I 70 Buss Rt is a concrete tee beam carrying I 70 Ml over I 70 Buss Rt in Clear Creek County, Colorado. It was built in 1958, so it is 67 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 5 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 36,000 vehicles a day, roughly 8% of them trucks, projected to reach 42,480 by 2040. The structure is 163 ft (49.7 m) long and 87 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml
CrossesI 70 Buss Rt
Location7.4 MI E of JCT US 40
RouteInterstate 70A
Coordinates39.74401, -105.53426
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length163 ft (49.7 m)
Longest span53 ft (16.2 m)
Deck width87 ft (26.4 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,000 (2020)
Projected traffic42,480 by 2040
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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 I 70 Buss Rt built?

It was built in 1958, making it 67 years old in 2025.

What condition is I 70 Ml over I 70 Buss Rt 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 I 70 Ml over I 70 Buss Rt carry?

About 36,000 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is I 70 Ml over I 70 Buss Rt?

The structure is 163 ft (49.7 m) long with a longest span of 53 ft (16.2 m) and a deck 87 ft wide.

Who owns I 70 Ml over I 70 Buss Rt?

It is owned by the State Highway Agency.