US Bridges

Chena Hot Spr RD over North Fork Chena River

Fair

Fairbanks North Star Borough, Alaska · Mile Point 55.3 · Structure no. 0242

Built
1972
53 years old, rebuilt 2009
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
106 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 1972 and reconstructed in 2009, so it is 53 years old, older than the Alaska average of 35.9 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 530 vehicles a day, roughly 9% of them trucks, projected to reach 1,710 by 2039. The structure is 106 ft (32.3 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 55.3
RouteState Highway 650
StateAlaska
Coordinates65.06766, -146.08643
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to 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 rating55.2 US tons
Inventory rating33 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length106 ft (32.3 m)
Longest span51 ft (15.5 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 1972, making it 53 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 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 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 106 ft (32.3 m) long with a longest span of 51 ft (15.5 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.