US Bridges

Castle Island RD over Long Pond

Fair

Kennebec County, Maine · .1 MI E Rome Tl · Structure no. 0485

Built
1986
39 years old
Condition
Fair
inspected April 2024
Type
Slab
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
1,395
2016 count
Owner
State
State Highway Agency

About this bridge

Castle Island RD over Long Pond is a prestressed concrete slab carrying Castle Island RD over Long Pond in Kennebec County, Maine. It was built in 1986, so it is 39 years old, younger 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 1,395 vehicles a day, roughly 5% of them trucks, projected to reach 2,093 by 2036. The structure is 36 ft (11 m) long and 27 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesCastle Island RD
CrossesLong Pond
Location.1 MI E Rome Tl
RouteCounty Highway 0
CountyKennebec County
StateMaine
Coordinates44.51202, -69.90872
Functional classRural Minor 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.8 US tons
Inventory rating47.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width27 ft (8.2 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,395 (2016)
Projected traffic2,093 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 Castle Island RD over Long Pond built?

It was built in 1986, making it 39 years old in 2025.

What condition is Castle Island RD over Long Pond 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 April 2024.

How much traffic does Castle Island RD over Long Pond carry?

About 1,395 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Castle Island RD over Long Pond?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 27 ft wide.

Who owns Castle Island RD over Long Pond?

It is owned by the State Highway Agency.