US Bridges

Monashka Bay Road over Monashka Creek

Fair

Kodiak Island Borough, Alaska · Mile Point 7.2 · Structure no. 1274

Built
1972
53 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
101 ft
4 main spans
Daily traffic
220
2020 count
Owner
State
State Highway Agency

About this bridge

Monashka Bay Road over Monashka Creek is a wood or timber stringer/multi-beam or girder carrying Monashka Bay Road over Monashka Creek in Kodiak Island Borough, Alaska. It was built in 1972, so it is 53 years old, older 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 6 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 220 vehicles a day, roughly 8% of them trucks, projected to reach 320 by 2039. The structure is 101 ft (30.9 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesMonashka Bay Road
CrossesMonashka Creek
LocationMile Point 7.2
RouteState Highway 389
StateAlaska
Coordinates57.8414, -152.44547
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating35.2 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20
Structure length101 ft (30.9 m)
Longest span25 ft (7.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2020)
Projected traffic320 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 Monashka Bay Road over Monashka Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Monashka Bay Road over Monashka Creek 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 September 2024.

How much traffic does Monashka Bay Road over Monashka Creek carry?

About 220 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Monashka Bay Road over Monashka Creek?

The structure is 101 ft (30.9 m) long with a longest span of 25 ft (7.6 m) and a deck 30 ft wide.

Who owns Monashka Bay Road over Monashka Creek?

It is owned by the State Highway Agency.