US Bridges

Main ST over Thatcher Brook

Fair

York County, Maine · 1 MI NW RTE 1 · Structure no. 3418

Built
1930
95 years old, rebuilt 1997
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
32 ft
1 main span
Daily traffic
2,440
2016 count
Owner
State
State Highway Agency

About this bridge

Main ST over Thatcher Brook is a wood or timber stringer/multi-beam or girder carrying Main ST over Thatcher Brook in York County, Maine. It was built in 1930 and reconstructed in 1997, so it is 95 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 2,440 vehicles a day, roughly 5% of them trucks, projected to reach 3,416 by 2036. The structure is 32 ft (9.8 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMain ST
CrossesThatcher Brook
Location1 MI NW RTE 1
RouteCounty Highway 0
CountyYork County
StateMaine
Coordinates43.4969, -70.47528
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating48.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length32 ft (9.8 m)
Longest span28 ft (8.5 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,440 (2016)
Projected traffic3,416 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Main ST over Thatcher Brook built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1997.

What condition is Main ST over Thatcher 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 June 2024.

How much traffic does Main ST over Thatcher Brook carry?

About 2,440 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Main ST over Thatcher Brook?

The structure is 32 ft (9.8 m) long with a longest span of 28 ft (8.5 m) and a deck 35 ft wide.

Who owns Main ST over Thatcher Brook?

It is owned by the State Highway Agency.