US Bridges

RTE 931 over Nine Mile Creek

Fair

Onondaga County, New York · 3MI SE of Exit 39 of I-90 · Structure no. 000000003093300

Built
1974
51 years old, rebuilt 2012
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
92 ft
1 main span
Daily traffic
5,502
2018 count
Owner
County
County Highway Agency

About this bridge

RTE 931 over Nine Mile Creek is a steel stringer/multi-beam or girder carrying RTE 931 over Nine Mile Creek in Onondaga County, New York. It was built in 1974 and reconstructed in 2012, so it is 51 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 5,502 vehicles a day, roughly 4% of them trucks, projected to reach 6,807 by 2041. The structure is 92 ft (28 m) long and 71 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE 931
CrossesNine Mile Creek
Location3MI SE of Exit 39 of I-90
RouteCounty Highway 931
Coordinates43.08082, -76.22665
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97 US tons
Inventory rating58 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length92 ft (28 m)
Longest span90 ft (27.4 m)
Deck width71 ft (21.5 m)
Roadway width68 ft (20.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,502 (2018)
Projected traffic6,807 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty 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$3.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 931 over Nine Mile Creek built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2012.

What condition is RTE 931 over Nine Mile 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 July 2024.

How much traffic does RTE 931 over Nine Mile Creek carry?

About 5,502 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is RTE 931 over Nine Mile Creek?

The structure is 92 ft (28 m) long with a longest span of 90 ft (27.4 m) and a deck 71 ft wide.

Who owns RTE 931 over Nine Mile Creek?

It is owned by the County Highway Agency.