US Bridges

Lucy Knowles RD over Wilson Stream

PoorPosted for load

Franklin County, Maine · 0.5 MI SW of JCT RTE 41 · Structure no. 3181

Built
1937
88 years old
Condition
Poor
inspected November 2024
Type
Truss - Thru
Steel
Length
176 ft
1 main span
Daily traffic
6,000
2018 count
Owner
State
State Highway Agency

About this bridge

Lucy Knowles RD over Wilson Stream is a steel truss - thru carrying Lucy Knowles RD over Wilson Stream in Franklin County, Maine. It was built in 1937, so it is 88 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. Its operating status is: posted for other load-capacity restriction.

It carries about 6,000 vehicles a day, roughly 2% of them trucks, projected to reach 4,108 by 2036. The structure is 176 ft (53.6 m) long and 23 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

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CarriesLucy Knowles RD
CrossesWilson Stream
Location0.5 MI SW of JCT RTE 41
RouteCounty Highway 156
CountyFranklin County
StateMaine
Coordinates44.61552, -70.08209
Functional classRural Major Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating26.8 US tons
Inventory rating20.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length176 ft (53.6 m)
Longest span170 ft (51.8 m)
Deck width23 ft (7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic6,000 (2018)
Projected traffic4,108 by 2036
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 Lucy Knowles RD over Wilson Stream built?

It was built in 1937, making it 88 years old in 2025.

What condition is Lucy Knowles RD over Wilson 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 November 2024.

How much traffic does Lucy Knowles RD over Wilson Stream carry?

About 6,000 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Lucy Knowles RD over Wilson Stream?

The structure is 176 ft (53.6 m) long with a longest span of 170 ft (51.8 m) and a deck 23 ft wide.

Who owns Lucy Knowles RD over Wilson Stream?

It is owned by the State Highway Agency.