US Bridges

South Shore RD over Twin Pond Outlet

Good

Herkimer County, New York · 2.5 MI E Old Forge · Structure no. 000000003308220

Built
2021
4 years old
Condition
Good
inspected December 2023
Type
Frame
Concrete
Length
39 ft
1 main span
Daily traffic
1,435
2017 count
Owner
County
County Highway Agency

About this bridge

South Shore RD over Twin Pond Outlet is a concrete frame carrying South Shore RD over Twin Pond Outlet in Herkimer County, New York. It was built in 2021, so it is 4 years old, younger than the New York average of 53 years.

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

It carries about 1,435 vehicles a day, roughly 9% of them trucks, projected to reach 2,009 by 2037. The structure is 39 ft (11.9 m) long and 33 ft wide. If it were closed, the detour would be 20.5 mi (33 km).

CarriesSouth Shore RD
CrossesTwin Pond Outlet
Location2.5 MI E Old Forge
RouteCounty Highway 0
Coordinates43.71034, -74.95051
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating88.6 US tons
Inventory rating45 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length39 ft (11.9 m)
Longest span36 ft (11 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,435 (2017)
Projected traffic2,009 by 2037
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed20.5 mi (33 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$864,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was South Shore RD over Twin Pond Outlet built?

It was built in 2021, making it 4 years old in 2025.

What condition is South Shore RD over Twin Pond Outlet 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 December 2023.

How much traffic does South Shore RD over Twin Pond Outlet carry?

About 1,435 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is South Shore RD over Twin Pond Outlet?

The structure is 39 ft (11.9 m) long with a longest span of 36 ft (11 m) and a deck 33 ft wide.

Who owns South Shore RD over Twin Pond Outlet?

It is owned by the County Highway Agency.