US Bridges

Long RD over Limestone Stream

FairPosted for load

Aroostook County, Maine · 0.5 MI Ely of Route 1A · Structure no. 5186

Built
1949
76 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
156
2016 count
Owner
State
State Highway Agency

About this bridge

Long RD over Limestone Stream is a concrete slab carrying Long RD over Limestone Stream in Aroostook County, Maine. It was built in 1949, so it is 76 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. Its operating status is: posted for load restriction.

It carries about 156 vehicles a day, roughly 5% of them trucks, projected to reach 250 by 2036. The structure is 29 ft (8.7 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLong RD
CrossesLimestone Stream
Location0.5 MI Ely of Route 1A
RouteCity Street 0
CountyAroostook County
StateMaine
Coordinates46.90766, -67.81372
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length29 ft (8.7 m)
Longest span25 ft (7.6 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic156 (2016)
Projected traffic250 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 RD over Limestone Stream built?

It was built in 1949, making it 76 years old in 2025.

What condition is Long RD over Limestone Stream 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 Long RD over Limestone Stream carry?

About 156 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Long RD over Limestone Stream?

The structure is 29 ft (8.7 m) long with a longest span of 25 ft (7.6 m) and a deck 28 ft wide.

Who owns Long RD over Limestone Stream?

It is owned by the State Highway Agency.