US Bridges

I 70 Ml+front RD over Allenwater Creek

Fair

Garfield County, Colorado · 1 MI E of Parachute · Structure no. G-04-BB

Built
1982
43 years old
Condition
Fair
inspected April 2022
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
20,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml+front RD over Allenwater Creek is a concrete culvert carrying I 70 Ml+front RD over Allenwater Creek in Garfield County, Colorado. It was built in 1982, so it is 43 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 20,000 vehicles a day, roughly 15% of them trucks, projected to reach 26,000 by 2040. The structure is 28 ft (8.4 m) long and 426 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesI 70 Ml+front RD
CrossesAllenwater Creek
Location1 MI E of Parachute
RouteInterstate 70A
Coordinates39.46528, -108.03771
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.8 US tons
Inventory rating44.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length28 ft (8.4 m)
Longest span13 ft (4 m)
Deck width426 ft (129.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2020)
Projected traffic26,000 by 2040
Trucks15%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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+front RD over Allenwater Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is I 70 Ml+front RD over Allenwater 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 April 2022.

How much traffic does I 70 Ml+front RD over Allenwater Creek carry?

About 20,000 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is I 70 Ml+front RD over Allenwater Creek?

The structure is 28 ft (8.4 m) long with a longest span of 13 ft (4 m) and a deck 426 ft wide.

Who owns I 70 Ml+front RD over Allenwater Creek?

It is owned by the State Highway Agency.