US Bridges

Fdr 6590 over Stream

Good

Wrangell City and Borough, Alaska · Zarembo Island · Structure no. 100522000036072

Built
2024
1 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
112 ft
1 main span
Daily traffic
10
2024 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 6590 over Stream is a steel stringer/multi-beam or girder carrying Fdr 6590 over Stream in Wrangell City and 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, projected to reach 15 by 2045. The structure is 112 ft (34.1 m) long and 18 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesFdr 6590
CrossesStream
LocationZarembo Island
RouteFederal Lands Road 6590
CountyWrangell City and Borough
StateAlaska
Coordinates56.42528, -132.96811
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation9: Superior to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHL 93
Structure length112 ft (34.1 m)
Longest span108 ft (32.9 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic10 (2024)
Projected traffic15 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 Fdr 6590 over Stream built?

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

What condition is Fdr 6590 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 Fdr 6590 over Stream carry?

About 10 vehicles per day (2024 count).

How long is Fdr 6590 over Stream?

The structure is 112 ft (34.1 m) long with a longest span of 108 ft (32.9 m) and a deck 18 ft wide.

Who owns Fdr 6590 over Stream?

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