US Bridges

IRR BIA Route 008 over Unnamed Stream

Fair

Prince of Wales-Hyder Census Area, Alaska · S of Klawock Lake 3.7 MI · Structure no. 0000E09108T0550

Built
1990
35 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
26 ft
1 main span
Daily traffic
1
2022 count
Owner
Tribal
Indian Tribal Government

About this bridge

IRR BIA Route 008 over Unnamed Stream is a wood or timber stringer/multi-beam or girder carrying IRR BIA Route 008 over Unnamed Stream in Prince of Wales-Hyder Census Area, Alaska. It was built in 1990, so it is 35 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 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 1 vehicles a day, projected to reach 5 by 2042. The structure is 26 ft (8 m) long and 13 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesIRR BIA Route 008
CrossesUnnamed Stream
LocationS of Klawock Lake 3.7 MI
RouteFederal Lands Road 0
CountyPrince of Wales-Hyder Census Area
StateAlaska
Coordinates55.49442, -132.97228
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37 US tons
Inventory rating23 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (8 m)
Longest span23 ft (7 m)
Deck width13 ft (4 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1 (2022)
Projected traffic5 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerIndian Tribal Government
Maintained byIndian Tribal Government
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$45,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR BIA Route 008 over Unnamed Stream built?

It was built in 1990, making it 35 years old in 2025.

What condition is IRR BIA Route 008 over Unnamed Stream 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 June 2023.

How much traffic does IRR BIA Route 008 over Unnamed Stream carry?

About 1 vehicles per day (2022 count).

How long is IRR BIA Route 008 over Unnamed Stream?

The structure is 26 ft (8 m) long with a longest span of 23 ft (7 m) and a deck 13 ft wide.

Who owns IRR BIA Route 008 over Unnamed Stream?

It is owned by the Indian Tribal Government.