US Bridges

Seward Highway over Seward HWY Oh MP 14.0

Good

Kenai Peninsula Borough, Alaska · Mile Point 14.0 · Structure no. 4054

Built
2000
25 years old
Condition
Good
inspected August 2023
Type
Culvert
Steel
Length
54 ft
1 main span
Daily traffic
2,180
2020 count
Owner
State
State Highway Agency

About this bridge

Seward Highway over Seward HWY Oh MP 14.0 is a steel culvert carrying Seward Highway over Seward HWY Oh MP 14.0 in Kenai Peninsula Borough, Alaska. It was built in 2000, so it is 25 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 2,180 vehicles a day, roughly 6% of them trucks, projected to reach 3,660 by 2039. The structure is 54 ft (16.5 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSeward Highway
CrossesSeward HWY Oh MP 14.0
LocationMile Point 14.0
RouteState Highway 31
StateAlaska
Coordinates60.285, -149.34361
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span30 ft (9.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,180 (2020)
Projected traffic3,660 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Seward Highway over Seward HWY Oh MP 14.0 built?

It was built in 2000, making it 25 years old in 2025.

What condition is Seward Highway over Seward HWY Oh MP 14.0 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 Seward Highway over Seward HWY Oh MP 14.0 carry?

About 2,180 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Seward Highway over Seward HWY Oh MP 14.0?

The structure is 54 ft (16.5 m) long with a longest span of 30 ft (9.1 m).

Who owns Seward Highway over Seward HWY Oh MP 14.0?

It is owned by the State Highway Agency.