US Bridges

Milton Mills RD over Salmon Falls River

PoorPosted for load

York County, Maine · State Line N H · Structure no. 2065

Built
1922
103 years old
Condition
Poor
inspected July 2023
Type
Slab
Concrete
Length
65 ft
1 main span
Daily traffic
445
2018 count
Owner
State
State Highway Agency

About this bridge

Milton Mills RD over Salmon Falls River is a concrete slab carrying Milton Mills RD over Salmon Falls River in York County, Maine. It was built in 1922, so it is 103 years old, older than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 445 vehicles a day, roughly 5% of them trucks, projected to reach 658 by 2040. The structure is 65 ft (19.8 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesMilton Mills RD
CrossesSalmon Falls River
LocationState Line N H
RouteCounty Highway 0
StateMaine
Coordinates43.50031, -70.95975
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating13.6 US tons
Inventory rating10.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadUnknown
Structure length65 ft (19.8 m)
Longest span18 ft (5.5 m)
Deck width28 ft (8.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic445 (2018)
Projected traffic658 by 2040
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.7 mi (14 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 Milton Mills RD over Salmon Falls River built?

It was built in 1922, making it 103 years old in 2025.

What condition is Milton Mills RD over Salmon Falls River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does Milton Mills RD over Salmon Falls River carry?

About 445 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Milton Mills RD over Salmon Falls River?

The structure is 65 ft (19.8 m) long with a longest span of 18 ft (5.5 m) and a deck 28 ft wide.

Who owns Milton Mills RD over Salmon Falls River?

It is owned by the State Highway Agency.