US Bridges

Grady Road over Ship Creek

GoodPosted for load

Anchorage Municipality, Alaska · 0.25 Miles Northeast of I · Structure no. AFAKFSXB95101

Built
2005
20 years old
Condition
Good
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
150 ft
1 main span
Daily traffic
500
2015 count
Owner
Federal
Air Force

About this bridge

Grady Road over Ship Creek is a prestressed concrete tee beam carrying Grady Road over Ship Creek in Anchorage Municipality, Alaska. It was built in 2005, so it is 20 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. Its operating status is: posted for load restriction.

It carries about 500 vehicles a day, projected to reach 600 by 2035. The structure is 150 ft (45.7 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesGrady Road
CrossesShip Creek
Location0.25 Miles Northeast of I
StateAlaska
Coordinates61.24107, -149.70744
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating40 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length150 ft (45.7 m)
Longest span149 ft (45.4 m)
Deck width31 ft (9.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2015)
Projected traffic600 by 2035
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerAir Force
Maintained byAir Force
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 Grady Road over Ship Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Grady Road over Ship Creek 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 Grady Road over Ship Creek carry?

About 500 vehicles per day (2015 count).

How long is Grady Road over Ship Creek?

The structure is 150 ft (45.7 m) long with a longest span of 149 ft (45.4 m) and a deck 31 ft wide.

Who owns Grady Road over Ship Creek?

It is owned by the Air Force.