US Bridges

Main ST over Ferguson Stream

Poor

Somerset County, Maine · 0.1 MI N of JCT RTE 152 · Structure no. 2276

Built
1929
96 years old
Condition
Poor
inspected September 2023
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
1,180
2016 count
Owner
State
State Highway Agency

About this bridge

Main ST over Ferguson Stream is a concrete frame carrying Main ST over Ferguson Stream in Somerset County, Maine. It was built in 1929, so it is 96 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 1,180 vehicles a day, roughly 5% of them trucks, projected to reach 1,770 by 2036. The structure is 23 ft (7.1 m) long and 31 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesMain ST
CrossesFerguson Stream
Location0.1 MI N of JCT RTE 152
RouteState Highway 150
CountySomerset County
StateMaine
Coordinates45.02359, -69.4742
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.6 US tons
Inventory rating25.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (7.1 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.3 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,180 (2016)
Projected traffic1,770 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Main ST over Ferguson Stream built?

It was built in 1929, making it 96 years old in 2025.

What condition is Main ST over Ferguson 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 September 2023.

How much traffic does Main ST over Ferguson Stream carry?

About 1,180 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Main ST over Ferguson Stream?

The structure is 23 ft (7.1 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Main ST over Ferguson Stream?

It is owned by the State Highway Agency.