US Bridges

Gammon RD over E Branch Nezinscot River

Good

Oxford County, Maine · JCT Stetson & Gammon Rds · Structure no. 0690

Built
2020
5 years old
Condition
Good
inspected May 2024
Type
Tee Beam
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
257
2016 count
Owner
State
State Highway Agency

About this bridge

Gammon RD over E Branch Nezinscot River is a prestressed concrete tee beam carrying Gammon RD over E Branch Nezinscot River in Oxford County, Maine. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 257 vehicles a day, roughly 5% of them trucks, projected to reach 411 by 2036. The structure is 70 ft (21.3 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesGammon RD
CrossesE Branch Nezinscot River
LocationJCT Stetson & Gammon Rds
RouteCity Street 0
StateMaine
Coordinates44.39664, -70.38883
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating84.7 US tons
Inventory rating61.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length70 ft (21.3 m)
Longest span62 ft (18.9 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic257 (2016)
Projected traffic411 by 2036
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Gammon RD over E Branch Nezinscot River built?

It was built in 2020, making it 5 years old in 2025.

What condition is Gammon RD over E Branch Nezinscot River 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 May 2024.

How much traffic does Gammon RD over E Branch Nezinscot River carry?

About 257 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Gammon RD over E Branch Nezinscot River?

The structure is 70 ft (21.3 m) long with a longest span of 62 ft (18.9 m) and a deck 23 ft wide.

Who owns Gammon RD over E Branch Nezinscot River?

It is owned by the State Highway Agency.