US Bridges

Gilligan Road over Boquet River

Poor

Essex County, New York · 7 MI S Elizabethtown · Structure no. 000000003301670

Built
1911
114 years old, rebuilt 1990
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
82 ft
2 main spans
Daily traffic
12
2017 count
Owner
County
County Highway Agency

About this bridge

Gilligan Road over Boquet River is a steel stringer/multi-beam or girder carrying Gilligan Road over Boquet River in Essex County, New York. It was built in 1911 and reconstructed in 1990, so it is 114 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 12 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2037. The structure is 82 ft (25 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesGilligan Road
CrossesBoquet River
Location7 MI S Elizabethtown
Coordinates44.14712, -73.62662
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating102 US tons
Inventory rating61 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans2
Design loadHS 20
Structure length82 ft (25 m)
Longest span55 ft (16.7 m)
Deck width16 ft (4.9 m)
Roadway width13 ft (3.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12 (2017)
Projected traffic17 by 2037
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$584,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Gilligan Road over Boquet River built?

It was built in 1911, making it 114 years old in 2025. It was reconstructed in 1990.

What condition is Gilligan Road over Boquet 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 September 2024.

How much traffic does Gilligan Road over Boquet River carry?

About 12 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Gilligan Road over Boquet River?

The structure is 82 ft (25 m) long with a longest span of 55 ft (16.7 m) and a deck 16 ft wide.

Who owns Gilligan Road over Boquet River?

It is owned by the County Highway Agency.