US Bridges

School Street over Mayfield Lake Outlet

Fair

Fulton County, New York · 1.3 MI North of RT.30 · Structure no. 000000002255610

Built
1932
93 years old, rebuilt 1991
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
96 ft
6 main spans
Daily traffic
1,830
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

School Street over Mayfield Lake Outlet is a steel continuous stringer/multi-beam or girder carrying School Street over Mayfield Lake Outlet in Fulton County, New York. It was built in 1932 and reconstructed in 1991, so it is 93 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,830 vehicles a day, roughly 6% of them trucks, projected to reach 2,562 by 2039. The structure is 96 ft (29.3 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSchool Street
CrossesMayfield Lake Outlet
Location1.3 MI North of RT.30
Coordinates43.09745, -74.25683
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43 US tons
Inventory rating26 US tons

Structure

MaterialSteel Continuous
DeckCorrugated steel
Main spans6
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span15 ft (4.5 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,830 (2019)
Projected traffic2,562 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was School Street over Mayfield Lake Outlet built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1991.

What condition is School Street over Mayfield Lake Outlet in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does School Street over Mayfield Lake Outlet carry?

About 1,830 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is School Street over Mayfield Lake Outlet?

The structure is 96 ft (29.3 m) long with a longest span of 15 ft (4.5 m) and a deck 25 ft wide.

Who owns School Street over Mayfield Lake Outlet?

It is owned by the Town or Township Highway Agency.