US Bridges

Lily Bay RD over South Brook

Fair

Piscataquis County, Maine · 1 MI N of Beaver Cove · Structure no. 5455

Built
1952
73 years old, rebuilt 2003
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
445
2016 count
Owner
State
State Highway Agency

About this bridge

Lily Bay RD over South Brook is a concrete slab carrying Lily Bay RD over South Brook in Piscataquis County, Maine. It was built in 1952 and reconstructed in 2003, so it is 73 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 445 vehicles a day, roughly 5% of them trucks, projected to reach 712 by 2036. The structure is 25 ft (7.6 m) long and 31 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
CarriesLily Bay RD
CrossesSouth Brook
Location1 MI N of Beaver Cove
RouteCounty Highway 0
CountyPiscataquis County
StateMaine
Coordinates45.59429, -69.5091
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic445 (2016)
Projected traffic712 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 Lily Bay RD over South Brook built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 2003.

What condition is Lily Bay RD over South 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 2023.

How much traffic does Lily Bay RD over South Brook carry?

About 445 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Lily Bay RD over South Brook?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 31 ft wide.

Who owns Lily Bay RD over South Brook?

It is owned by the State Highway Agency.