US Bridges

Steese Highway over Chatanika River

Good

Fairbanks North Star Borough, Alaska · Mile Point 37.3 · Structure no. 0392

Built
1967
58 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
317 ft
3 main spans
Daily traffic
210
2020 count
Owner
State
State Highway Agency

About this bridge

Steese Highway over Chatanika River is a steel continuous stringer/multi-beam or girder carrying Steese Highway over Chatanika River in Fairbanks North Star Borough, Alaska. It was built in 1967, 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 210 vehicles a day, roughly 17% of them trucks, projected to reach 710 by 2039. The structure is 317 ft (96.7 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSteese Highway
CrossesChatanika River
LocationMile Point 37.3
RouteState Highway 670
StateAlaska
Coordinates65.19176, -147.25493
Functional classRural Minor Arterial

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
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 rating72.4 US tons
Inventory rating33.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length317 ft (96.7 m)
Longest span120 ft (36.6 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2020)
Projected traffic710 by 2039
Trucks17%
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 Steese Highway over Chatanika River built?

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

What condition is Steese Highway over Chatanika 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 Steese Highway over Chatanika River carry?

About 210 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is Steese Highway over Chatanika River?

The structure is 317 ft (96.7 m) long with a longest span of 120 ft (36.6 m) and a deck 33 ft wide.

Who owns Steese Highway over Chatanika River?

It is owned by the State Highway Agency.