US Bridges

Chena Hot Spr RD over North Fork Chena River

Good

Fairbanks North Star Borough, Alaska · Mile Point 45.7 · Structure no. 0235

Built
1967
58 years old, rebuilt 2009
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
122 ft
2 main spans
Daily traffic
530
2020 count
Owner
State
State Highway Agency

About this bridge

Chena Hot Spr RD over North Fork Chena River is a steel stringer/multi-beam or girder carrying Chena Hot Spr RD over North Fork Chena River in Fairbanks North Star Borough, Alaska. It was built in 1967 and reconstructed in 2009, so it is 58 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 530 vehicles a day, roughly 9% of them trucks, projected to reach 1,710 by 2039. The structure is 122 ft (37.1 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesChena Hot Spr RD
CrossesNorth Fork Chena River
LocationMile Point 45.7
RouteState Highway 650
StateAlaska
Coordinates64.96663, -146.23471
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating32.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length122 ft (37.1 m)
Longest span60 ft (18.3 m)
Deck width30 ft (9 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic530 (2020)
Projected traffic1,710 by 2039
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

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 Chena Hot Spr RD over North Fork Chena River built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2009.

What condition is Chena Hot Spr RD over North Fork Chena River 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 Chena Hot Spr RD over North Fork Chena River carry?

About 530 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is Chena Hot Spr RD over North Fork Chena River?

The structure is 122 ft (37.1 m) long with a longest span of 60 ft (18.3 m) and a deck 30 ft wide.

Who owns Chena Hot Spr RD over North Fork Chena River?

It is owned by the State Highway Agency.