US Bridges

I 70 Wbnd over Cottonwood Creek

Good

Garfield County, Colorado · 3.8 MI E of Parachute · Structure no. G-05-L

Built
1981
44 years old
Condition
Good
inspected April 2022
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
10,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Wbnd over Cottonwood Creek is a concrete culvert carrying I 70 Wbnd over Cottonwood Creek in Garfield County, Colorado. It was built in 1981, so it is 44 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,000 vehicles a day, roughly 15% of them trucks, projected to reach 13,000 by 2040. The structure is 25 ft (7.6 m) long and 94 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Wbnd
CrossesCottonwood Creek
Location3.8 MI E of Parachute
RouteInterstate 70A
Coordinates39.4774, -107.9887
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 48 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.3 US tons
Inventory rating34.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width94 ft (28.7 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2020)
Projected traffic13,000 by 2040
Trucks15%
Lanes on structure2
Traffic directionOne-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 Wbnd over Cottonwood Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is I 70 Wbnd over Cottonwood Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2022.

How much traffic does I 70 Wbnd over Cottonwood Creek carry?

About 10,000 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is I 70 Wbnd over Cottonwood Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 94 ft wide.

Who owns I 70 Wbnd over Cottonwood Creek?

It is owned by the State Highway Agency.