US Bridges

RTE 5S over Terwilleger Creek

Good

Montgomery County, New York · 1.5 MI E JCT Rts 5S & 160 · Structure no. 000000001002970

Built
1957
68 years old, rebuilt 2018
Condition
Good
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
2,421
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 5S over Terwilleger Creek is a prestressed concrete tee beam carrying RTE 5S over Terwilleger Creek in Montgomery County, New York. It was built in 1957 and reconstructed in 2018, so it is 68 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,421 vehicles a day, roughly 19% of them trucks, projected to reach 2,525 by 2041. The structure is 64 ft (19.5 m) long and 44 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesRTE 5S
CrossesTerwilleger Creek
Location1.5 MI E JCT Rts 5S & 160
RouteState Highway 5S
Coordinates42.91579, -74.15342
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating45 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length64 ft (19.5 m)
Longest span60 ft (18.2 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,421 (2020)
Projected traffic2,525 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 5S over Terwilleger Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2018.

What condition is RTE 5S over Terwilleger Creek 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 2024.

How much traffic does RTE 5S over Terwilleger Creek carry?

About 2,421 vehicles per day (2020 count), of which roughly 19% are trucks.

How long is RTE 5S over Terwilleger Creek?

The structure is 64 ft (19.5 m) long with a longest span of 60 ft (18.2 m) and a deck 44 ft wide.

Who owns RTE 5S over Terwilleger Creek?

It is owned by the State Highway Agency.