US Bridges

Cushman - Ak HWY over C-N Ramp Oc

Good

Fairbanks North Star Borough, Alaska · Fairbanks · Structure no. 1706

Built
1988
37 years old
Condition
Good
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
161 ft
2 main spans
Daily traffic
1,720
2020 count
Owner
State
State Highway Agency

About this bridge

Cushman - Ak HWY over C-N Ramp Oc is a prestressed concrete tee beam carrying Cushman - Ak HWY over C-N Ramp Oc in Fairbanks North Star Borough, Alaska. It was built in 1988, so it is 37 years old, older than the Alaska average of 35.9 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 1,720 vehicles a day, roughly 7% of them trucks, projected to reach 2,050 by 2039. The structure is 161 ft (49.1 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCushman - Ak HWY
CrossesC-N Ramp Oc
LocationFairbanks
RouteCity Street 0
StateAlaska
Coordinates64.8233, -147.70973
Functional classUrban 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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating57.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length161 ft (49.1 m)
Longest span79 ft (24.2 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,720 (2020)
Projected traffic2,050 by 2039
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cushman - Ak HWY over C-N Ramp Oc built?

It was built in 1988, making it 37 years old in 2025.

What condition is Cushman - Ak HWY over C-N Ramp Oc 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 August 2024.

How much traffic does Cushman - Ak HWY over C-N Ramp Oc carry?

About 1,720 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Cushman - Ak HWY over C-N Ramp Oc?

The structure is 161 ft (49.1 m) long with a longest span of 79 ft (24.2 m) and a deck 25 ft wide.

Who owns Cushman - Ak HWY over C-N Ramp Oc?

It is owned by the State Highway Agency.