US Bridges

Plum Street over Onondaga Creek

Fair

Onondaga County, New York · .1 MI NW JCT 690<81 Syr · Structure no. 000000002208570

Built
1907
118 years old, rebuilt 2016
Condition
Fair
inspected September 2024
Type
Truss - Thru
Steel
Length
77 ft
1 main span
Daily traffic
776
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Plum Street over Onondaga Creek is a steel truss - thru carrying Plum Street over Onondaga Creek in Onondaga County, New York. It was built in 1907 and reconstructed in 2016, so it is 118 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 776 vehicles a day, roughly 2% of them trucks, projected to reach 1,086 by 2039. The structure is 77 ft (23.5 m) long and 26 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesPlum Street
CrossesOnondaga Creek
Location.1 MI NW JCT 690<81 Syr
RouteCity Street 0
Coordinates43.05559, -76.15968
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span71 ft (21.6 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic776 (2019)
Projected traffic1,086 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Plum Street over Onondaga Creek built?

It was built in 1907, making it 118 years old in 2025. It was reconstructed in 2016.

What condition is Plum Street over Onondaga Creek 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 September 2024.

How much traffic does Plum Street over Onondaga Creek carry?

About 776 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Plum Street over Onondaga Creek?

The structure is 77 ft (23.5 m) long with a longest span of 71 ft (21.6 m) and a deck 26 ft wide.

Who owns Plum Street over Onondaga Creek?

It is owned by the City or Municipal Highway Agency.