US Bridges

Long Falls Dam RD over Michael Brook

Poor

Somerset County, Maine · .9 MI S Townline · Structure no. 3042

Built
1932
93 years old
Condition
Poor
inspected August 2023
Type
Tee Beam
Concrete
Length
40 ft
1 main span
Daily traffic
200
2016 count
Owner
State
State Highway Agency

About this bridge

Long Falls Dam RD over Michael Brook is a concrete tee beam carrying Long Falls Dam RD over Michael Brook in Somerset County, Maine. It was built in 1932, so it is 93 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.

It carries about 200 vehicles a day, roughly 5% of them trucks, projected to reach 320 by 2036. The structure is 40 ft (12.3 m) long and 29 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesLong Falls Dam RD
CrossesMichael Brook
Location.9 MI S Townline
RouteCounty Highway 0
StateMaine
Coordinates45.03491, -70.06527
Functional classRural Minor Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length40 ft (12.3 m)
Longest span35 ft (10.6 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2016)
Projected traffic320 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 Long Falls Dam RD over Michael Brook built?

It was built in 1932, making it 93 years old in 2025.

What condition is Long Falls Dam RD over Michael Brook 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 August 2023.

How much traffic does Long Falls Dam RD over Michael Brook carry?

About 200 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Long Falls Dam RD over Michael Brook?

The structure is 40 ft (12.3 m) long with a longest span of 35 ft (10.6 m) and a deck 29 ft wide.

Who owns Long Falls Dam RD over Michael Brook?

It is owned by the State Highway Agency.