US Bridges

Bog RD over Bog Brook

Fair

Kennebec County, Maine · 1.0 MI SW Benton Tl · Structure no. 0506

Built
1974
51 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
31 ft
1 main span
Daily traffic
134
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Bog RD over Bog Brook is a concrete slab carrying Bog RD over Bog Brook in Kennebec County, Maine. It was built in 1974, so it is 51 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 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 134 vehicles a day, roughly 5% of them trucks, projected to reach 214 by 2036. The structure is 31 ft (9.4 m) long and 32 ft wide.

CarriesBog RD
CrossesBog Brook
Location1.0 MI SW Benton Tl
RouteCity Street 0
StateMaine
Coordinates44.57622, -69.42885
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating93.3 US tons
Inventory rating72.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic134 (2016)
Projected traffic214 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Bog RD over Bog Brook built?

It was built in 1974, making it 51 years old in 2025.

What condition is Bog RD over Bog 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 September 2024.

How much traffic does Bog RD over Bog Brook carry?

About 134 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Bog RD over Bog Brook?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.

Who owns Bog RD over Bog Brook?

It is owned by the Town or Township Highway Agency.