US Bridges

Mills RD over Damariscotta River

Fair

Lincoln County, Maine · 1.9 MI Nly of Route 1B · Structure no. 5608

Built
1957
68 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
2,197
2016 count
Owner
State
State Highway Agency

About this bridge

Mills RD over Damariscotta River is a concrete slab carrying Mills RD over Damariscotta River in Lincoln County, Maine. It was built in 1957, so it is 68 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 5 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 2,197 vehicles a day, roughly 5% of them trucks, projected to reach 3,076 by 2036. The structure is 29 ft (8.7 m) long and 30 ft wide.

Location

Open in Google Maps
CarriesMills RD
CrossesDamariscotta River
Location1.9 MI Nly of Route 1B
RouteCounty Highway 215
CountyLincoln County
StateMaine
Coordinates44.06035, -69.52555
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length29 ft (8.7 m)
Longest span25 ft (7.6 m)
Deck width30 ft (9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,197 (2016)
Projected traffic3,076 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 Mills RD over Damariscotta River built?

It was built in 1957, making it 68 years old in 2025.

What condition is Mills RD over Damariscotta 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 August 2023.

How much traffic does Mills RD over Damariscotta River carry?

About 2,197 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Mills RD over Damariscotta River?

The structure is 29 ft (8.7 m) long with a longest span of 25 ft (7.6 m) and a deck 30 ft wide.

Who owns Mills RD over Damariscotta River?

It is owned by the State Highway Agency.