US Bridges

Maple RD over Alder Stream

Fair

Piscataquis County, Maine · 5 MI N of Bradford · Structure no. 5920

Built
1963
62 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete
Length
38 ft
1 main span
Daily traffic
92
2016 count
Owner
State
State Highway Agency

About this bridge

Maple RD over Alder Stream is a concrete slab carrying Maple RD over Alder Stream in Piscataquis County, Maine. It was built in 1963, so it is 62 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 6 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 92 vehicles a day, roughly 5% of them trucks, projected to reach 147 by 2036. The structure is 38 ft (11.6 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMaple RD
CrossesAlder Stream
Location5 MI N of Bradford
RouteCity Street 0
CountyPiscataquis County
StateMaine
Coordinates45.18151, -69.02746
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating53.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length38 ft (11.6 m)
Longest span35 ft (10.7 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic92 (2016)
Projected traffic147 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
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 Maple RD over Alder Stream built?

It was built in 1963, making it 62 years old in 2025.

What condition is Maple RD over Alder 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 July 2023.

How much traffic does Maple RD over Alder Stream carry?

About 92 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Maple RD over Alder Stream?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.7 m) and a deck 29 ft wide.

Who owns Maple RD over Alder Stream?

It is owned by the State Highway Agency.