US Bridges

Irr:jakolof Bay RD over Barabara Creek

Poor

Kenai Peninsula Borough, Alaska · Mile Point 4.4 · Structure no. 0433

Built
1968
57 years old
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
72 ft
1 main span
Daily traffic
110
2020 count
Owner
State
State Highway Agency

About this bridge

Irr:jakolof Bay RD over Barabara Creek is a steel stringer/multi-beam or girder carrying Irr:jakolof Bay RD over Barabara Creek in Kenai Peninsula Borough, Alaska. It was built in 1968, so it is 57 years old, older 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 4 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.

It carries about 110 vehicles a day, roughly 8% of them trucks, projected to reach 130 by 2039. The structure is 72 ft (21.9 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIrr:jakolof Bay RD
CrossesBarabara Creek
LocationMile Point 4.4
RouteState Highway NSP00
StateAlaska
Coordinates59.47667, -151.64194
Functional classRural Minor Collector

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.3 US tons
Inventory rating42.7 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span70 ft (21.3 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic130 by 2039
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free 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:jakolof Bay RD over Barabara Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Irr:jakolof Bay RD over Barabara 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 August 2023.

How much traffic does Irr:jakolof Bay RD over Barabara Creek carry?

About 110 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Irr:jakolof Bay RD over Barabara Creek?

The structure is 72 ft (21.9 m) long with a longest span of 70 ft (21.3 m) and a deck 24 ft wide.

Who owns Irr:jakolof Bay RD over Barabara Creek?

It is owned by the State Highway Agency.