US Bridges

County Road 79 over Saw Kill

Good

Dutchess County, New York · 0.5 MI NW of Red Hook · Structure no. 000000003343730

Built
2016
9 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
2,294
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 79 over Saw Kill is a prestressed concrete box beam or girders - multiple carrying County Road 79 over Saw Kill in Dutchess County, New York. It was built in 2016, so it is 9 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,294 vehicles a day, roughly 5% of them trucks, projected to reach 2,838 by 2041. The structure is 72 ft (21.9 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesCounty Road 79
CrossesSaw Kill
Location0.5 MI NW of Red Hook
RouteCounty Highway 0
Coordinates42.00361, -73.87987
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating46 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length72 ft (21.9 m)
Longest span68 ft (20.7 m)
Deck width42 ft (12.7 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,294 (2021)
Projected traffic2,838 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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$1.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 79 over Saw Kill built?

It was built in 2016, making it 9 years old in 2025.

What condition is County Road 79 over Saw Kill 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 July 2024.

How much traffic does County Road 79 over Saw Kill carry?

About 2,294 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is County Road 79 over Saw Kill?

The structure is 72 ft (21.9 m) long with a longest span of 68 ft (20.7 m) and a deck 42 ft wide.

Who owns County Road 79 over Saw Kill?

It is owned by the County Highway Agency.