US Bridges

Townsend Road over Swan Lake Inlet

Good

Sullivan County, New York · 1.4 MI SE White Sulfr Spr · Structure no. 000000003356820

Built
2021
4 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
117
2018 count
Owner
County
County Highway Agency

About this bridge

Townsend Road over Swan Lake Inlet is a prestressed concrete box beam or girders - multiple carrying Townsend Road over Swan Lake Inlet in Sullivan 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 117 vehicles a day, roughly 3% of them trucks, projected to reach 164 by 2038. The structure is 71 ft (21.6 m) long and 24 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesTownsend Road
CrossesSwan Lake Inlet
Location1.4 MI SE White Sulfr Spr
Coordinates41.78695, -74.81747
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating94 US tons
Inventory rating56 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length71 ft (21.6 m)
Longest span67 ft (20.4 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic117 (2018)
Projected traffic164 by 2038
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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$719,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Townsend Road over Swan Lake Inlet built?

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

What condition is Townsend Road over Swan Lake Inlet 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 October 2023.

How much traffic does Townsend Road over Swan Lake Inlet carry?

About 117 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is Townsend Road over Swan Lake Inlet?

The structure is 71 ft (21.6 m) long with a longest span of 67 ft (20.4 m) and a deck 24 ft wide.

Who owns Townsend Road over Swan Lake Inlet?

It is owned by the County Highway Agency.