US Bridges

RTE 991H over Susquehanna River

Fair

Delaware County, New York · 0.6 MI N of I_88 Exit 10 · Structure no. 000000001094170

Built
1973
52 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
316 ft
2 main spans
Daily traffic
1,662
2018 count
Owner
State
State Highway Agency

About this bridge

RTE 991H over Susquehanna River is a steel continuous stringer/multi-beam or girder carrying RTE 991H over Susquehanna River in Delaware County, New York. It was built in 1973, so it is 52 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 1,662 vehicles a day, roughly 5% of them trucks, projected to reach 2,056 by 2041. The structure is 316 ft (96.3 m) long and 74 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRTE 991H
CrossesSusquehanna River
Location0.6 MI N of I_88 Exit 10
RouteState Highway 991H
CountyDelaware County
StateNew York
Coordinates42.32097, -75.32205
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length316 ft (96.3 m)
Longest span156 ft (47.5 m)
Deck width74 ft (22.6 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,662 (2018)
Projected traffic2,056 by 2041
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$9.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 991H over Susquehanna River built?

It was built in 1973, making it 52 years old in 2025.

What condition is RTE 991H over Susquehanna 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 October 2024.

How much traffic does RTE 991H over Susquehanna River carry?

About 1,662 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is RTE 991H over Susquehanna River?

The structure is 316 ft (96.3 m) long with a longest span of 156 ft (47.5 m) and a deck 74 ft wide.

Who owns RTE 991H over Susquehanna River?

It is owned by the State Highway Agency.