US Bridges

Ferry Shuttle RTE over Gravina Airport F.T. II

Good

Ketchikan Gateway Borough, Alaska · Ketchikan Airport · Structure no. 0196

Built
2024
1 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
281 ft
1 main span
Daily traffic
348
2018 count
Owner
County
County Highway Agency

About this bridge

Ferry Shuttle RTE over Gravina Airport F.T. II is a steel stringer/multi-beam or girder carrying Ferry Shuttle RTE over Gravina Airport F.T. II in Ketchikan Gateway Borough, Alaska. It was built in 2024, so it is 1 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 348 vehicles a day, roughly 6% of them trucks, projected to reach 850 by 2035. The structure is 281 ft (85.6 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesFerry Shuttle RTE
CrossesGravina Airport F.T. II
LocationKetchikan Airport
RouteState Highway 922
CountyKetchikan Gateway Borough
StateAlaska
Coordinates55.35706, -131.70753
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.5 US tons
Inventory rating46.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckSteel plate
Main spans1 (+6 approach)
Design loadHL 93
Structure length281 ft (85.6 m)
Longest span136 ft (41.5 m)
Deck width25 ft (7.6 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic348 (2018)
Projected traffic850 by 2035
Trucks6%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Ferry Shuttle RTE over Gravina Airport F.T. II built?

It was built in 2024, making it 1 years old in 2025.

What condition is Ferry Shuttle RTE over Gravina Airport F.T. II 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 June 2024.

How much traffic does Ferry Shuttle RTE over Gravina Airport F.T. II carry?

About 348 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Ferry Shuttle RTE over Gravina Airport F.T. II?

The structure is 281 ft (85.6 m) long with a longest span of 136 ft (41.5 m) and a deck 25 ft wide.

Who owns Ferry Shuttle RTE over Gravina Airport F.T. II?

It is owned by the County Highway Agency.