US Bridges

RTE I87 over Zim Smith Trail

Good

Saratoga County, New York · 1.3 MI S JCT I87 & SH 67 · Structure no. 000000001033282

Built
1996
29 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
124 ft
1 main span
Daily traffic
33,849
2014 count
Owner
State
State Highway Agency

About this bridge

RTE I87 over Zim Smith Trail is a steel stringer/multi-beam or girder carrying RTE I87 over Zim Smith Trail in Saratoga County, New York. It was built in 1996, so it is 29 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 33,849 vehicles a day, roughly 10% of them trucks, projected to reach 53,640 by 2041. The structure is 124 ft (37.8 m) long and 66 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE I87
CrossesZim Smith Trail
Location1.3 MI S JCT I87 & SH 67
RouteInterstate 87
Coordinates42.95109, -73.80385
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating50 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length124 ft (37.8 m)
Longest span120 ft (36.5 m)
Deck width66 ft (20 m)
Roadway width62 ft (19 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,849 (2014)
Projected traffic53,640 by 2041
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesPedestrian / bicycle
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$3.7 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I87 over Zim Smith Trail built?

It was built in 1996, making it 29 years old in 2025.

What condition is RTE I87 over Zim Smith Trail 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 March 2024.

How much traffic does RTE I87 over Zim Smith Trail carry?

About 33,849 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is RTE I87 over Zim Smith Trail?

The structure is 124 ft (37.8 m) long with a longest span of 120 ft (36.5 m) and a deck 66 ft wide.

Who owns RTE I87 over Zim Smith Trail?

It is owned by the State Highway Agency.