US Bridges

Robbins RD over 15 Mile Stream

Poor

Kennebec County, Maine · 0.1 MI E of Drake Hill RD · Structure no. 2529

Built
1931
94 years old
Condition
Poor
inspected October 2024
Type
Slab
Concrete
Length
39 ft
2 main spans
Daily traffic
143
2016 count
Owner
State
State Highway Agency

About this bridge

Robbins RD over 15 Mile Stream is a concrete slab carrying Robbins RD over 15 Mile Stream in Kennebec County, Maine. It was built in 1931, so it is 94 years old, older than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 143 vehicles a day, roughly 5% of them trucks, projected to reach 229 by 2036. The structure is 39 ft (12 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesRobbins RD
Crosses15 Mile Stream
Location0.1 MI E of Drake Hill RD
RouteCity Street 0
StateMaine
Coordinates44.48111, -69.43261
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.5 US tons
Inventory rating36.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length39 ft (12 m)
Longest span18 ft (5.5 m)
Deck width25 ft (7.5 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic143 (2016)
Projected traffic229 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Robbins RD over 15 Mile Stream built?

It was built in 1931, making it 94 years old in 2025.

What condition is Robbins RD over 15 Mile Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Robbins RD over 15 Mile Stream carry?

About 143 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Robbins RD over 15 Mile Stream?

The structure is 39 ft (12 m) long with a longest span of 18 ft (5.5 m) and a deck 25 ft wide.

Who owns Robbins RD over 15 Mile Stream?

It is owned by the State Highway Agency.