US Bridges

Crow Creek Road over Crow Creek

Fair

Anchorage Municipality, Alaska · Mile Point 4.9 · Structure no. 1028

Built
1950
75 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
81 ft
1 main span
Daily traffic
410
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Crow Creek Road over Crow Creek is a steel stringer/multi-beam or girder carrying Crow Creek Road over Crow Creek in Anchorage Municipality, Alaska. It was built in 1950, so it is 75 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 5 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 410 vehicles a day, roughly 6% of them trucks, projected to reach 470 by 2039. The structure is 81 ft (24.6 m) long and 17 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesCrow Creek Road
CrossesCrow Creek
LocationMile Point 4.9
RouteState Highway NSP00
CountyAnchorage Municipality
StateAlaska
Coordinates61.0214, -149.0952
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length81 ft (24.6 m)
Longest span80 ft (24.3 m)
Deck width17 ft (5.2 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2020)
Projected traffic470 by 2039
Trucks6%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Crow Creek Road over Crow Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Crow Creek Road over Crow 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 June 2023.

How much traffic does Crow Creek Road over Crow Creek carry?

About 410 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Crow Creek Road over Crow Creek?

The structure is 81 ft (24.6 m) long with a longest span of 80 ft (24.3 m) and a deck 17 ft wide.

Who owns Crow Creek Road over Crow Creek?

It is owned by the City or Municipal Highway Agency.