US Bridges

Haines Highway over Chilkat River

Fair

Haines Borough, Alaska · Mile Point 23.2 · Structure no. 0742

Built
1958
67 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
504 ft
10 main spans
Daily traffic
340
2020 count
Owner
State
State Highway Agency

About this bridge

Haines Highway over Chilkat River is a steel stringer/multi-beam or girder carrying Haines Highway over Chilkat River in Haines Borough, Alaska. It was built in 1958, so it is 67 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 340 vehicles a day, roughly 11% of them trucks, projected to reach 400 by 2039. The structure is 504 ft (153.5 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesHaines Highway
CrossesChilkat River
LocationMile Point 23.2
RouteState Highway 95
StateAlaska
Coordinates59.41515, -135.93251
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment6: Equal to present minimum criteria
Operating rating53.5 US tons
Inventory rating24.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans10
Design loadH 20
Structure length504 ft (153.5 m)
Longest span49 ft (14.9 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2020)
Projected traffic400 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Haines Highway over Chilkat River built?

It was built in 1958, making it 67 years old in 2025.

What condition is Haines Highway over Chilkat 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 May 2024.

How much traffic does Haines Highway over Chilkat River carry?

About 340 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is Haines Highway over Chilkat River?

The structure is 504 ft (153.5 m) long with a longest span of 49 ft (14.9 m) and a deck 27 ft wide.

Who owns Haines Highway over Chilkat River?

It is owned by the State Highway Agency.