US Bridges

I 70 Frontage RD over Dry Creek SR

Good

Garfield County, Colorado · 2.5 MI of Rifle · Structure no. F-06-AC

Built
1975
50 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
372
2023 count
Owner
State
State Highway Agency

About this bridge

I 70 Frontage RD over Dry Creek SR is a prestressed concrete stringer/multi-beam or girder carrying I 70 Frontage RD over Dry Creek SR in Garfield County, Colorado. It was built in 1975, so it is 50 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 372 vehicles a day, roughly 11% of them trucks, projected to reach 473 by 2043. The structure is 68 ft (20.6 m) long and 31 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

CarriesI 70 Frontage RD
CrossesDry Creek SR
Location2.5 MI of Rifle
RouteInterstate 70A
Coordinates39.52769, -107.74689
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.8 US tons
Inventory rating40.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length68 ft (20.6 m)
Longest span65 ft (19.8 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic372 (2023)
Projected traffic473 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 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 Frontage RD over Dry Creek SR built?

It was built in 1975, making it 50 years old in 2025.

What condition is I 70 Frontage RD over Dry Creek SR 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 September 2024.

How much traffic does I 70 Frontage RD over Dry Creek SR carry?

About 372 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is I 70 Frontage RD over Dry Creek SR?

The structure is 68 ft (20.6 m) long with a longest span of 65 ft (19.8 m) and a deck 31 ft wide.

Who owns I 70 Frontage RD over Dry Creek SR?

It is owned by the State Highway Agency.