US Bridges

North C over Ship Creek

Fair

Anchorage Municipality, Alaska · Mile Point 0.1 · Structure no. 1940

Built
1992
33 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Steel
Length
134 ft
1 main span
Daily traffic
2,340
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

North C over Ship Creek is a steel box beam or girders - multiple carrying North C over Ship Creek in Anchorage Municipality, Alaska. It was built in 1992, so it is 33 years old, younger 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 2,340 vehicles a day, roughly 4% of them trucks, projected to reach 4,440 by 2039. The structure is 134 ft (40.8 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNorth C
CrossesShip Creek
LocationMile Point 0.1
RouteCity Street 0
StateAlaska
Coordinates61.22389, -149.88806
Functional classUrban 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
Deck7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating110.1 US tons
Inventory rating34 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length134 ft (40.8 m)
Longest span130 ft (39.6 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,340 (2020)
Projected traffic4,440 by 2039
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 North C over Ship Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is North C over Ship 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 August 2023.

How much traffic does North C over Ship Creek carry?

About 2,340 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is North C over Ship Creek?

The structure is 134 ft (40.8 m) long with a longest span of 130 ft (39.6 m) and a deck 33 ft wide.

Who owns North C over Ship Creek?

It is owned by the City or Municipal Highway Agency.