US Bridges

Sebago RD over Quaker Brook

Fair

Cumberland County, Maine · 0.2 MI NE of JCT RTE 107 · Structure no. 3693

Built
1939
86 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
1,180
2016 count
Owner
State
State Highway Agency

About this bridge

Sebago RD over Quaker Brook is a concrete slab carrying Sebago RD over Quaker Brook in Cumberland County, Maine. It was built in 1939, so it is 86 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 1,180 vehicles a day, roughly 5% of them trucks, projected to reach 1,770 by 2036. The structure is 26 ft (7.8 m) long and 29 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesSebago RD
CrossesQuaker Brook
Location0.2 MI NE of JCT RTE 107
RouteCounty Highway 11
CountyCumberland County
StateMaine
Coordinates43.83064, -70.66936
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating51.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length26 ft (7.8 m)
Longest span22 ft (6.6 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,180 (2016)
Projected traffic1,770 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 Sebago RD over Quaker Brook built?

It was built in 1939, making it 86 years old in 2025.

What condition is Sebago RD over Quaker Brook 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 November 2024.

How much traffic does Sebago RD over Quaker Brook carry?

About 1,180 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Sebago RD over Quaker Brook?

The structure is 26 ft (7.8 m) long with a longest span of 22 ft (6.6 m) and a deck 29 ft wide.

Who owns Sebago RD over Quaker Brook?

It is owned by the State Highway Agency.