US Bridges

RTE 17 over Mid Mongaup River

Fair

Sullivan County, New York · 07 MI S JCT Rts 17 + 52 · Structure no. 000000001013640

Built
1956
69 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
82 ft
2 main spans
Daily traffic
14,651
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 17 over Mid Mongaup River is a concrete continuous culvert carrying RTE 17 over Mid Mongaup River in Sullivan County, New York. It was built in 1956, so it is 69 years old, older 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 5 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 14,651 vehicles a day, roughly 12% of them trucks, projected to reach 16,977 by 2041. The structure is 82 ft (25 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 17
CrossesMid Mongaup River
Location07 MI S JCT Rts 17 + 52
RouteState Highway 17
CountySullivan County
StateNew York
Coordinates41.7776, -74.73268
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length82 ft (25 m)
Longest span40 ft (12.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,651 (2021)
Projected traffic16,977 by 2041
Trucks12%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 17 over Mid Mongaup River built?

It was built in 1956, making it 69 years old in 2025.

What condition is RTE 17 over Mid 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 April 2023.

How much traffic does RTE 17 over Mid Mongaup River carry?

About 14,651 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is RTE 17 over Mid Mongaup River?

The structure is 82 ft (25 m) long with a longest span of 40 ft (12.2 m).

Who owns RTE 17 over Mid Mongaup River?

It is owned by the State Highway Agency.