US Bridges

Manchu Trail over French Creek

GoodPosted for load

Fairbanks North Star Borough, Alaska · Approximately 350 from I · Structure no. AFAKFTQW08001

Built
1960
65 years old
Condition
Good
inspected August 2023
Type
Truss - Thru
Steel
Length
71 ft
1 main span
Daily traffic
1
2021 count
Owner
Federal
Air Force

About this bridge

Manchu Trail over French Creek is a steel truss - thru carrying Manchu Trail over French Creek in Fairbanks North Star Borough, Alaska. It was built in 1960, so it is 65 years old, older 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 1 vehicles a day, projected to reach 1 by 2041. The structure is 71 ft (21.5 m) long and 14 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesManchu Trail
CrossesFrench Creek
LocationApproximately 350 from I
StateAlaska
Coordinates64.69044, -147.07669
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating28 US tons
Inventory rating17 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length71 ft (21.5 m)
Longest span70 ft (21.2 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1 (2021)
Projected traffic1 by 2041
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Manchu Trail over French Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Manchu Trail over French 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 Manchu Trail over French Creek carry?

About 1 vehicles per day (2021 count).

How long is Manchu Trail over French Creek?

The structure is 71 ft (21.5 m) long with a longest span of 70 ft (21.2 m) and a deck 14 ft wide.

Who owns Manchu Trail over French Creek?

It is owned by the Air Force.