US Bridges

Halibut Point Road over Cascade Creek

Fair

Sitka City and Borough, Alaska · Mile Point 2.0 · Structure no. 0867

Built
1937
88 years old, rebuilt 1972
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
4,790
2020 count
Owner
State
State Highway Agency

About this bridge

Halibut Point Road over Cascade Creek is a steel stringer/multi-beam or girder carrying Halibut Point Road over Cascade Creek in Sitka City and Borough, Alaska. It was built in 1937 and reconstructed in 1972, so it is 88 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 5 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 4,790 vehicles a day, roughly 6% of them trucks, projected to reach 6,130 by 2039. The structure is 54 ft (16.5 m) long and 41 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesHalibut Point Road
CrossesCascade Creek
LocationMile Point 2.0
RouteState Highway 935
StateAlaska
Coordinates57.07333, -135.36944
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating72 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length54 ft (16.5 m)
Longest span50 ft (15.2 m)
Deck width41 ft (12.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,790 (2020)
Projected traffic6,130 by 2039
Trucks6%
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 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 Halibut Point Road over Cascade Creek built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1972.

What condition is Halibut Point Road over Cascade Creek 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 2023.

How much traffic does Halibut Point Road over Cascade Creek carry?

About 4,790 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Halibut Point Road over Cascade Creek?

The structure is 54 ft (16.5 m) long with a longest span of 50 ft (15.2 m) and a deck 41 ft wide.

Who owns Halibut Point Road over Cascade Creek?

It is owned by the State Highway Agency.