US Bridges

Cottonwood Lane over North Fork Anchor River

Good

Kenai Peninsula Borough, Alaska · Mile Point 0.2 · Structure no. 1701

Built
1997
28 years old
Condition
Good
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
69 ft
1 main span
Daily traffic
175
2018 count
Owner
County
County Highway Agency

About this bridge

Cottonwood Lane over North Fork Anchor River is a prestressed concrete tee beam carrying Cottonwood Lane over North Fork Anchor River 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 175 vehicles a day, roughly 1% of them trucks, projected to reach 180 by 2035. The structure is 69 ft (21 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCottonwood Lane
CrossesNorth Fork Anchor River
LocationMile Point 0.2
RouteState Highway NSP00
StateAlaska
Coordinates59.79417, -151.7525
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.5 US tons
Inventory rating49.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length69 ft (21 m)
Longest span67 ft (20.4 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2018)
Projected traffic180 by 2035
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

OwnerCounty Highway Agency
Maintained byCounty 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 Cottonwood Lane over North Fork Anchor River built?

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

What condition is Cottonwood Lane 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 Cottonwood Lane over North Fork Anchor River carry?

About 175 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Cottonwood Lane over North Fork Anchor River?

The structure is 69 ft (21 m) long with a longest span of 67 ft (20.4 m) and a deck 27 ft wide.

Who owns Cottonwood Lane over North Fork Anchor River?

It is owned by the County Highway Agency.