US Bridges

IRR BIA RTE 8PGH over Unnamed Creek

PoorClosed to traffic

Kenai Peninsula Borough, Alaska · 15.4 MI SE of Port Graha · Structure no. 000000008PGH-39

Built
1997
28 years old
Condition
Poor
inspected June 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
37 ft
1 main span
Daily traffic
5
2021 count
Owner
Tribal
Indian Tribal Government

About this bridge

IRR BIA RTE 8PGH over Unnamed Creek is a wood or timber stringer/multi-beam or girder carrying IRR BIA RTE 8PGH over Unnamed Creek in Kenai Peninsula Borough, Alaska. It was built in 1997, so it is 28 years old, younger than the Alaska average of 35.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 0 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 5 vehicles a day, projected to reach 6 by 2041. The structure is 37 ft (11.3 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIRR BIA RTE 8PGH
CrossesUnnamed Creek
Location15.4 MI SE of Port Graha
RouteFederal Lands Road 8PGH
StateAlaska
Coordinates59.24133, -151.60261
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure0 FailedOut of service and beyond corrective action.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialWood or Timber
DeckNot applicable
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span30 ft (9 m)
Deck width22 ft (6.8 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2021)
Projected traffic6 by 2041
Trucks—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR BIA RTE 8PGH over Unnamed Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is IRR BIA RTE 8PGH over Unnamed Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does IRR BIA RTE 8PGH over Unnamed Creek carry?

About 5 vehicles per day (2021 count).

How long is IRR BIA RTE 8PGH over Unnamed Creek?

The structure is 37 ft (11.3 m) long with a longest span of 30 ft (9 m) and a deck 22 ft wide.

Who owns IRR BIA RTE 8PGH over Unnamed Creek?

It is owned by the Indian Tribal Government.