US Bridges

Four Mile Square R over Green Wood Brook

Good

Somerset County, Maine · .5 MI W Rt 234 · Structure no. 1055

Built
2007
18 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
1 main span
Daily traffic
67
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Four Mile Square R over Green Wood Brook is a steel stringer/multi-beam or girder carrying Four Mile Square R over Green Wood Brook in Somerset County, Maine. It was built in 2007, so it is 18 years old, younger than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 67 vehicles a day, roughly 5% of them trucks, projected to reach 107 by 2036. The structure is 58 ft (17.7 m) long and 18 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFour Mile Square R
CrossesGreen Wood Brook
Location.5 MI W Rt 234
RouteCity Street 0
StateMaine
Coordinates44.84999, -70.01066
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span56 ft (17.1 m)
Deck width18 ft (5.4 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic67 (2016)
Projected traffic107 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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 Four Mile Square R over Green Wood Brook built?

It was built in 2007, making it 18 years old in 2025.

What condition is Four Mile Square R over Green Wood Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Four Mile Square R over Green Wood Brook carry?

About 67 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Four Mile Square R over Green Wood Brook?

The structure is 58 ft (17.7 m) long with a longest span of 56 ft (17.1 m) and a deck 18 ft wide.

Who owns Four Mile Square R over Green Wood Brook?

It is owned by the Town or Township Highway Agency.