US Bridges

RTE 93 over Donner Brook

Fair

Niagara County, New York · 2.5 MI South of Lockport · Structure no. 000000003329530

Built
1958
67 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
15,610
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 93 over Donner Brook is a concrete slab carrying RTE 93 over Donner Brook in Niagara County, New York. It was built in 1958, so it is 67 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 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 15,610 vehicles a day, roughly 7% of them trucks, projected to reach 16,484 by 2041. The structure is 23 ft (7 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRTE 93
CrossesDonner Brook
Location2.5 MI South of Lockport
RouteState Highway 93
CountyNiagara County
StateNew York
Coordinates43.13235, -78.69447
Functional classUrban Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width52 ft (15.8 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,610 (2020)
Projected traffic16,484 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 93 over Donner Brook built?

It was built in 1958, making it 67 years old in 2025.

What condition is RTE 93 over Donner 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 July 2024.

How much traffic does RTE 93 over Donner Brook carry?

About 15,610 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is RTE 93 over Donner Brook?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 52 ft wide.

Who owns RTE 93 over Donner Brook?

It is owned by the State Highway Agency and maintained by the County Highway Agency.