US Bridges

Denali Park Road over East Fork Toklat River

Fair

Yukon-Koyukuk Census Area, Alaska · 43.52 Miles West of Ak Ro · Structure no. 9830012P0000000

Built
1955
70 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
283 ft
3 main spans
Daily traffic
300
2013 count
Owner
Federal
National Park Service

About this bridge

Denali Park Road over East Fork Toklat River is a steel continuous stringer/multi-beam or girder carrying Denali Park Road over East Fork Toklat River in Yukon-Koyukuk Census Area, Alaska. It was built in 1955, so it is 70 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 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 300 vehicles a day, roughly 1% of them trucks, projected to reach 500 by 2033. The structure is 283 ft (86.3 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesDenali Park Road
CrossesEast Fork Toklat River
Location43.52 Miles West of Ak Ro
RouteFederal Lands Road 0
StateAlaska
Coordinates63.55903, -149.79444
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32 US tons
Inventory rating22 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 15
Structure length283 ft (86.3 m)
Longest span88 ft (26.8 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2013)
Projected traffic500 by 2033
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
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 Denali Park Road over East Fork Toklat River built?

It was built in 1955, making it 70 years old in 2025.

What condition is Denali Park Road over East Fork Toklat River 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 Denali Park Road over East Fork Toklat River carry?

About 300 vehicles per day (2013 count), of which roughly 1% are trucks.

How long is Denali Park Road over East Fork Toklat River?

The structure is 283 ft (86.3 m) long with a longest span of 88 ft (26.8 m) and a deck 29 ft wide.

Who owns Denali Park Road over East Fork Toklat River?

It is owned by the National Park Service.