US Bridges

RTE 12B over Sangerfield River

Fair

Chenango County, New York · 3.0 MI NW JCT Rt 12B + 12 · Structure no. 000000001009860

Built
1957
68 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
70 ft
1 main span
Daily traffic
3,869
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 12B over Sangerfield River is a steel stringer/multi-beam or girder carrying RTE 12B over Sangerfield River in Chenango County, New York. It was built in 1957, so it is 68 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 5 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 3,869 vehicles a day, roughly 8% of them trucks, projected to reach 3,892 by 2041. The structure is 70 ft (21.3 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE 12B
CrossesSangerfield River
Location3.0 MI NW JCT Rt 12B + 12
RouteState Highway 12B
CountyChenango County
StateNew York
Coordinates42.71856, -75.54
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length70 ft (21.3 m)
Longest span65 ft (19.8 m)
Deck width44 ft (13.5 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,869 (2021)
Projected traffic3,892 by 2041
Trucks8%
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

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$2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 12B over Sangerfield River built?

It was built in 1957, making it 68 years old in 2025.

What condition is RTE 12B over Sangerfield River 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 June 2023.

How much traffic does RTE 12B over Sangerfield River carry?

About 3,869 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is RTE 12B over Sangerfield River?

The structure is 70 ft (21.3 m) long with a longest span of 65 ft (19.8 m) and a deck 44 ft wide.

Who owns RTE 12B over Sangerfield River?

It is owned by the State Highway Agency.