US Bridges

Military Turnpike over Saranac River

Poor

Clinton County, New York · 2.0 MI S Inters RT3&RT190 · Structure no. 000000003359870

Built
1992
33 years old
Condition
Poor
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
130 ft
2 main spans
Daily traffic
7,926
2021 count
Owner
County
County Highway Agency

About this bridge

Military Turnpike over Saranac River is a prestressed concrete box beam or girders - multiple carrying Military Turnpike over Saranac River in Clinton County, New York. It was built in 1992, so it is 33 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 7,926 vehicles a day, roughly 6% of them trucks, projected to reach 9,628 by 2041. The structure is 130 ft (39.6 m) long and 35 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesMilitary Turnpike
CrossesSaranac River
Location2.0 MI S Inters RT3&RT190
RouteCounty Highway 0
Coordinates44.66987, -73.50756
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating88 US tons
Inventory rating38 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span62 ft (18.8 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,926 (2021)
Projected traffic9,628 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5.6 mi (9 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$1.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Military Turnpike over Saranac River built?

It was built in 1992, making it 33 years old in 2025.

What condition is Military Turnpike over Saranac River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Military Turnpike over Saranac River carry?

About 7,926 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Military Turnpike over Saranac River?

The structure is 130 ft (39.6 m) long with a longest span of 62 ft (18.8 m) and a deck 35 ft wide.

Who owns Military Turnpike over Saranac River?

It is owned by the County Highway Agency.