US Bridges

RTE 98 over Tonawanda Creek

PoorPosted for load

Wyoming County, New York · 0.6MI S JCT Rts 78 + 20A · Structure no. 000000001060100

Built
1931
94 years old, rebuilt 1990
Condition
Poor
inspected July 2024
Type
Girder and Floorbeam System
Steel
Length
91 ft
1 main span
Daily traffic
1,114
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 98 over Tonawanda Creek is a steel girder and floorbeam system carrying RTE 98 over Tonawanda Creek in Wyoming County, New York. It was built in 1931 and reconstructed in 1990, so it is 94 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. Its operating status is: posted for load restriction.

It carries about 1,114 vehicles a day, roughly 13% of them trucks, projected to reach 1,560 by 2041. The structure is 91 ft (27.7 m) long and 28 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesRTE 98
CrossesTonawanda Creek
Location0.6MI S JCT Rts 78 + 20A
RouteState Highway 98
Coordinates42.74833, -78.30563
Functional classRural Minor Collector

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51 US tons
Inventory rating14 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length91 ft (27.7 m)
Longest span85 ft (25.9 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,114 (2021)
Projected traffic1,560 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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$1.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 98 over Tonawanda Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1990.

What condition is RTE 98 over Tonawanda Creek 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 July 2024.

How much traffic does RTE 98 over Tonawanda Creek carry?

About 1,114 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is RTE 98 over Tonawanda Creek?

The structure is 91 ft (27.7 m) long with a longest span of 85 ft (25.9 m) and a deck 28 ft wide.

Who owns RTE 98 over Tonawanda Creek?

It is owned by the State Highway Agency.