US Bridges

RTE 318 over Black Brook

Fair

Seneca County, New York · 1.9 MI N of Seneca Falls · Structure no. 000000001074340

Built
1962
63 years old
Condition
Fair
inspected October 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
30 ft
2 main spans
Daily traffic
8,694
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 318 over Black Brook is a aluminum, wrought iron, or cast iron culvert carrying RTE 318 over Black Brook in Seneca County, New York. It was built in 1962, 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 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 8,694 vehicles a day, roughly 13% of them trucks, projected to reach 12,155 by 2041. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRTE 318
CrossesBlack Brook
Location1.9 MI N of Seneca Falls
RouteState Highway 318
CountySeneca County
StateNew York
Coordinates42.953, -76.80953
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.9 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans2
Design loadH 20
Structure length30 ft (9.1 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,694 (2021)
Projected traffic12,155 by 2041
Trucks13%
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

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$294,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 318 over Black Brook built?

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

What condition is RTE 318 over Black Brook 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 October 2023.

How much traffic does RTE 318 over Black Brook carry?

About 8,694 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is RTE 318 over Black Brook?

The structure is 30 ft (9.1 m) long with a longest span of 12 ft (3.7 m).

Who owns RTE 318 over Black Brook?

It is owned by the State Highway Agency.