US Bridges

Nelson Ave Ext over RTE I87

Poor

Saratoga County, New York · 2.0 MI N JCT Rt 9 & I87 · Structure no. 000000001033330

Built
1962
63 years old, rebuilt 1996
Condition
Poor
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
139 ft
3 main spans
Daily traffic
513
2020 count
Owner
State
State Highway Agency

About this bridge

Nelson Ave Ext over RTE I87 is a prestressed concrete box beam or girders - multiple carrying Nelson Ave Ext over RTE I87 in Saratoga County, New York. It was built in 1962 and reconstructed in 1996, so it is 63 years old, older 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 513 vehicles a day, roughly 7% of them trucks, projected to reach 634 by 2041. The structure is 139 ft (42.4 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesNelson Ave Ext
CrossesRTE I87
Location2.0 MI N JCT Rt 9 & I87
RouteCounty Highway 0
CountySaratoga County
StateNew York
Coordinates43.04566, -73.77358
Functional classUrban Collector

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length139 ft (42.4 m)
Longest span55 ft (16.7 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic513 (2020)
Projected traffic634 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$2.4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nelson Ave Ext over RTE I87 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1996.

What condition is Nelson Ave Ext over RTE I87 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 Nelson Ave Ext over RTE I87 carry?

About 513 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Nelson Ave Ext over RTE I87?

The structure is 139 ft (42.4 m) long with a longest span of 55 ft (16.7 m) and a deck 35 ft wide.

Who owns Nelson Ave Ext over RTE I87?

It is owned by the State Highway Agency.