US Bridges

Manchu Lake RD over Moose Creek

FairPosted for load

Fairbanks North Star Borough, Alaska · Eieson Afb Ta · Structure no. DAPPACWAI0XBRID

Built
2005
20 years old
Condition
Fair
inspected August 2023
Type
Truss - Thru
Steel
Length
70 ft
1 main span
Daily traffic
100
2019 count
Owner
Federal
Army

About this bridge

Manchu Lake RD over Moose Creek is a steel truss - thru carrying Manchu Lake RD over Moose Creek in Fairbanks North Star Borough, 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 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. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 40% of them trucks, projected to reach 3,000 by 2044. The structure is 70 ft (21.3 m) long and 14 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesManchu Lake RD
CrossesMoose Creek
LocationEieson Afb Ta
StateAlaska
Coordinates64.71418, -147.0539
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating47.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span64 ft (19.5 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2019)
Projected traffic3,000 by 2044
Trucks40%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerArmy
Maintained byArmy
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Manchu Lake RD over Moose Creek built?

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

What condition is Manchu Lake RD over Moose 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 August 2023.

How much traffic does Manchu Lake RD over Moose Creek carry?

About 100 vehicles per day (2019 count), of which roughly 40% are trucks.

How long is Manchu Lake RD over Moose Creek?

The structure is 70 ft (21.3 m) long with a longest span of 64 ft (19.5 m) and a deck 14 ft wide.

Who owns Manchu Lake RD over Moose Creek?

It is owned by the Army.