US Bridges

Silvermine Road over Queensboro Brook

Poor

Orange County, New York · 4 MI SW JCT US 6 & US 9W · Structure no. 000000005521440

Built
1940
85 years old
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
29 ft
2 main spans
Daily traffic
—
2024 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Silvermine Road over Queensboro Brook is a steel continuous stringer/multi-beam or girder carrying Silvermine Road over Queensboro Brook in Orange County, New York. It was built in 1940, so it is 85 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.

No traffic count is recorded. The structure is 29 ft (8.8 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSilvermine Road
CrossesQueensboro Brook
Location4 MI SW JCT US 6 & US 9W
Coordinates41.29506, -74.0597
Functional classRural Local

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating103 US tons
Inventory rating61.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span12 ft (3.6 m)
Deck width22 ft (6.6 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation Agency
Historic statusHistorical significance not determinable at this time
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$589,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Silvermine Road over Queensboro Brook built?

It was built in 1940, making it 85 years old in 2025.

What condition is Silvermine Road over Queensboro Brook 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 August 2024.

How much traffic does Silvermine Road over Queensboro Brook carry?

No traffic count is recorded for this structure.

How long is Silvermine Road over Queensboro Brook?

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.6 m) and a deck 22 ft wide.

Who owns Silvermine Road over Queensboro Brook?

It is owned by the State Park, Forest, or Reservation Agency.