US Bridges

RTE 324 over RTE 78

Fair

Erie County, New York · JCT State Hwys 324 & 78 · Structure no. 000000001030290

Built
1998
27 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
116 ft
1 main span
Daily traffic
22,109
2019 count
Owner
State
State Highway Agency

About this bridge

RTE 324 over RTE 78 is a steel stringer/multi-beam or girder carrying RTE 324 over RTE 78 in Erie County, New York. It was built in 1998, so it is 27 years old, younger 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 6 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 22,109 vehicles a day, roughly 2% of them trucks, projected to reach 22,212 by 2041. The structure is 116 ft (35.4 m) long and 76 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 324
CrossesRTE 78
LocationJCT State Hwys 324 & 78
RouteState Highway 324
CountyErie County
StateNew York
Coordinates42.97819, -78.69695
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length116 ft (35.4 m)
Longest span112 ft (34.1 m)
Deck width76 ft (23.2 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,109 (2019)
Projected traffic22,212 by 2041
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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$9.3 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 324 over RTE 78 built?

It was built in 1998, making it 27 years old in 2025.

What condition is RTE 324 over RTE 78 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 March 2024.

How much traffic does RTE 324 over RTE 78 carry?

About 22,109 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is RTE 324 over RTE 78?

The structure is 116 ft (35.4 m) long with a longest span of 112 ft (34.1 m) and a deck 76 ft wide.

Who owns RTE 324 over RTE 78?

It is owned by the State Highway Agency.