US Bridges

Old Valdez Trail over Piledriver Slough

Good

Fairbanks North Star Borough, Alaska · Mile Point 5.1 · Structure no. 4059

Built
2003
22 years old
Condition
Good
inspected August 2024
Type
Culvert
Steel
Length
28 ft
2 main spans
Daily traffic
50
2020 count
Owner
State
State Highway Agency

About this bridge

Old Valdez Trail over Piledriver Slough is a steel culvert carrying Old Valdez Trail over Piledriver Slough in Fairbanks North Star Borough, Alaska. It was built in 2003, so it is 22 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, roughly 9% of them trucks, projected to reach 60 by 2039. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 14.9 mi (24 km).

CarriesOld Valdez Trail
CrossesPiledriver Slough
LocationMile Point 5.1
RouteState Highway 0
StateAlaska
Coordinates64.60177, -147.09175
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating40.3 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length28 ft (8.5 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic60 by 2039
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Valdez Trail over Piledriver Slough built?

It was built in 2003, making it 22 years old in 2025.

What condition is Old Valdez Trail over Piledriver Slough 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 2024.

How much traffic does Old Valdez Trail over Piledriver Slough carry?

About 50 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is Old Valdez Trail over Piledriver Slough?

The structure is 28 ft (8.5 m) long with a longest span of 14 ft (4.3 m).

Who owns Old Valdez Trail over Piledriver Slough?

It is owned by the State Highway Agency.