US Bridges

Road over Stream

Good

Hoonah-Angoon Census Area, Alaska · Hoonah - Long Island · Structure no. 100320000003031

Built
1996
29 years old, rebuilt 2018
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
1 main span
Daily traffic
50
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Stream is a steel stringer/multi-beam or girder carrying Road over Stream in Hoonah-Angoon Census Area, Alaska. It was built in 1996 and reconstructed in 2018, so it is 29 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 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 71 ft (21.6 m) long and 18 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesRoad
CrossesStream
LocationHoonah - Long Island
RouteFederal Lands Road 8502
StateAlaska
Coordinates58.07289, -135.45864
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadOther
Structure length71 ft (21.6 m)
Longest span69 ft (20.9 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2006)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over Stream built?

It was built in 1996, making it 29 years old in 2025. It was reconstructed in 2018.

What condition is Road over Stream 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 Road over Stream carry?

About 50 vehicles per day (2006 count).

How long is Road over Stream?

The structure is 71 ft (21.6 m) long with a longest span of 69 ft (20.9 m) and a deck 18 ft wide.

Who owns Road over Stream?

It is owned by the U.S. Forest Service.