US Bridges

Kenai Riv Crossing over Kenai River (kenai)

Fair

Kenai Peninsula Borough, Alaska · Mile Point 2.6 · Structure no. 1149

Built
1974
51 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Steel Continuous
Length
981 ft
5 main spans
Daily traffic
10,000
2020 count
Owner
State
State Highway Agency

About this bridge

Kenai Riv Crossing over Kenai River (kenai) is a steel continuous box beam or girders - multiple carrying Kenai Riv Crossing over Kenai River (kenai) in Kenai Peninsula Borough, Alaska. It was built in 1974, so it is 51 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 10,000 vehicles a day, roughly 6% of them trucks, projected to reach 11,600 by 2039. The structure is 981 ft (298.9 m) long and 45 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesKenai Riv Crossing
CrossesKenai River (kenai)
LocationMile Point 2.6
RouteState Highway 463
StateAlaska
Coordinates60.52694, -151.20889
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating72.9 US tons
Inventory rating33.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length981 ft (298.9 m)
Longest span215 ft (65.5 m)
Deck width45 ft (13.7 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2020)
Projected traffic11,600 by 2039
Trucks6%
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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Kenai Riv Crossing over Kenai River (kenai) built?

It was built in 1974, making it 51 years old in 2025.

What condition is Kenai Riv Crossing over Kenai River (kenai) 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 August 2023.

How much traffic does Kenai Riv Crossing over Kenai River (kenai) carry?

About 10,000 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Kenai Riv Crossing over Kenai River (kenai)?

The structure is 981 ft (298.9 m) long with a longest span of 215 ft (65.5 m) and a deck 45 ft wide.

Who owns Kenai Riv Crossing over Kenai River (kenai)?

It is owned by the State Highway Agency.