US Bridges

Irr:ferry Access over Angoon Ferry Terminal

Fair

Hoonah-Angoon Census Area, Alaska · Angoon · Structure no. 0181

Built
2011
14 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
137 ft
1 main span
Daily traffic
31
2018 count
Owner
State
State Highway Agency

About this bridge

Irr:ferry Access over Angoon Ferry Terminal is a steel stringer/multi-beam or girder carrying Irr:ferry Access over Angoon Ferry Terminal in Hoonah-Angoon Census Area, Alaska. It was built in 2011, so it is 14 years old, younger 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 31 vehicles a day, roughly 8% of them trucks, projected to reach 60 by 2035. The structure is 137 ft (41.8 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesIrr:ferry Access
CrossesAngoon Ferry Terminal
LocationAngoon
RouteState Highway 998
CountyHoonah-Angoon Census Area
StateAlaska
Coordinates57.47268, -134.56759
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.1 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckOpen grating
Main spans1
Design loadHL 93
Structure length137 ft (41.8 m)
Longest span137 ft (41.8 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31 (2018)
Projected traffic60 by 2035
Trucks8%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a toll 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 Irr:ferry Access over Angoon Ferry Terminal built?

It was built in 2011, making it 14 years old in 2025.

What condition is Irr:ferry Access over Angoon Ferry Terminal 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 Irr:ferry Access over Angoon Ferry Terminal carry?

About 31 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is Irr:ferry Access over Angoon Ferry Terminal?

The structure is 137 ft (41.8 m) long with a longest span of 137 ft (41.8 m) and a deck 18 ft wide.

Who owns Irr:ferry Access over Angoon Ferry Terminal?

It is owned by the State Highway Agency.