US Bridges

Mill ST over Mousam River

Good

York County, Maine · 0.1 MI E JCT 11& 109 · Structure no. 1360

Built
2000
25 years old
Condition
Good
inspected July 2023
Type
Slab
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
1,158
2016 count
Owner
State
State Highway Agency

About this bridge

Mill ST over Mousam River is a prestressed concrete slab carrying Mill ST over Mousam River in York County, Maine. It was built in 2000, so it is 25 years old, younger than the Maine average of 53.7 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.

It carries about 1,158 vehicles a day, roughly 5% of them trucks, projected to reach 1,737 by 2036. The structure is 38 ft (11.6 m) long and 44 ft wide.

CarriesMill ST
CrossesMousam River
Location0.1 MI E JCT 11& 109
RouteCity Street 0
StateMaine
Coordinates43.46776, -70.79743
Functional classUrban 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 protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating54.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length38 ft (11.6 m)
Longest span34 ft (10.4 m)
Deck width44 ft (13.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,158 (2016)
Projected traffic1,737 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill ST over Mousam River built?

It was built in 2000, making it 25 years old in 2025.

What condition is Mill ST over Mousam River 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 July 2023.

How much traffic does Mill ST over Mousam River carry?

About 1,158 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Mill ST over Mousam River?

The structure is 38 ft (11.6 m) long with a longest span of 34 ft (10.4 m) and a deck 44 ft wide.

Who owns Mill ST over Mousam River?

It is owned by the State Highway Agency.