US Bridges

Wilsons Mills over Magalloway River

Fair

Oxford County, Maine · 6.9 MI Wly Adamstown Twp · Structure no. 3514

Built
1968
57 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
206 ft
3 main spans
Daily traffic
330
2016 count
Owner
State
State Highway Agency

About this bridge

Wilsons Mills over Magalloway River is a steel continuous stringer/multi-beam or girder carrying Wilsons Mills over Magalloway River in Oxford County, Maine. It was built in 1968, so it is 57 years old, older than the Maine average of 53.7 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 330 vehicles a day, roughly 5% of them trucks, projected to reach 528 by 2036. The structure is 206 ft (62.7 m) long and 32 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesWilsons Mills
CrossesMagalloway River
Location6.9 MI Wly Adamstown Twp
RouteState Highway 16
StateMaine
Coordinates44.93647, -71.03366
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating38.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length206 ft (62.7 m)
Longest span77 ft (23.5 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2016)
Projected traffic528 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 Wilsons Mills over Magalloway River built?

It was built in 1968, making it 57 years old in 2025.

What condition is Wilsons Mills over Magalloway 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 December 2023.

How much traffic does Wilsons Mills over Magalloway River carry?

About 330 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Wilsons Mills over Magalloway River?

The structure is 206 ft (62.7 m) long with a longest span of 77 ft (23.5 m) and a deck 32 ft wide.

Who owns Wilsons Mills over Magalloway River?

It is owned by the State Highway Agency.