US Bridges

Nikolaevsk Road over North Fork Anchor River

Good

Kenai Peninsula Borough, Alaska · Mile Point 0.3 · Structure no. 4115

Built
2021
4 years old
Condition
Good
inspected August 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
34 ft
1 main span
Daily traffic
250
2020 count
Owner
State
State Highway Agency

About this bridge

Nikolaevsk Road over North Fork Anchor River is a aluminum, wrought iron, or cast iron culvert carrying Nikolaevsk Road over North Fork Anchor River in Kenai Peninsula Borough, Alaska. It was built in 2021, so it is 4 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 250 vehicles a day, roughly 1% of them trucks, projected to reach 280 by 2039. The structure is 34 ft (10.5 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNikolaevsk Road
CrossesNorth Fork Anchor River
LocationMile Point 0.3
RouteState Highway NSPCY
StateAlaska
Coordinates59.80039, -151.63675
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating110.1 US tons
Inventory rating68.8 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHL 93
Structure length34 ft (10.5 m)
Longest span34 ft (10.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2020)
Projected traffic280 by 2039
Trucks1%
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 Nikolaevsk Road over North Fork Anchor River built?

It was built in 2021, making it 4 years old in 2025.

What condition is Nikolaevsk Road over North Fork Anchor River 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 2023.

How much traffic does Nikolaevsk Road over North Fork Anchor River carry?

About 250 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nikolaevsk Road over North Fork Anchor River?

The structure is 34 ft (10.5 m) long with a longest span of 34 ft (10.5 m).

Who owns Nikolaevsk Road over North Fork Anchor River?

It is owned by the State Highway Agency.