US Bridges

RTE 17 over Mongaup River

Fair

Sullivan County, New York · JCT RTE 17B + Mongaup R · Structure no. 000000001014200

Built
2020
5 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
127 ft
1 main span
Daily traffic
12,379
2019 count
Owner
State
State Highway Agency

About this bridge

RTE 17 over Mongaup River is a steel stringer/multi-beam or girder carrying RTE 17 over Mongaup River in Sullivan County, New York. It was built in 2020, so it is 5 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 12,379 vehicles a day, roughly 14% of them trucks, projected to reach 15,038 by 2041. The structure is 127 ft (38.7 m) long and 51 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 17
CrossesMongaup River
LocationJCT RTE 17B + Mongaup R
RouteState Highway 17
CountySullivan County
StateNew York
Coordinates41.66722, -74.78194
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107 US tons
Inventory rating64 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length127 ft (38.7 m)
Longest span125 ft (38.1 m)
Deck width51 ft (15.6 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic12,379 (2019)
Projected traffic15,038 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 17 over Mongaup River built?

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

What condition is RTE 17 over Mongaup River 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 November 2024.

How much traffic does RTE 17 over Mongaup River carry?

About 12,379 vehicles per day (2019 count), of which roughly 14% are trucks.

How long is RTE 17 over Mongaup River?

The structure is 127 ft (38.7 m) long with a longest span of 125 ft (38.1 m) and a deck 51 ft wide.

Who owns RTE 17 over Mongaup River?

It is owned by the State Highway Agency.