US Bridges

Caroline Street over Chaumont River

Fair

Jefferson County, New York · 0.05 MI SW JCT RT12 · Structure no. 000000003366610

Built
1915
110 years old
Condition
Fair
inspected September 2023
Type
Arch - Deck
Prestressed Concrete
Length
134 ft
7 main spans
Daily traffic
1,228
2020 count
Owner
County
County Highway Agency

About this bridge

Caroline Street over Chaumont River is a prestressed concrete arch - deck carrying Caroline Street over Chaumont River in Jefferson County, New York. It was built in 1915, so it is 110 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 1,228 vehicles a day, roughly 5% of them trucks, projected to reach 1,719 by 2040. The structure is 134 ft (40.8 m) long and 28 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesCaroline Street
CrossesChaumont River
Location0.05 MI SW JCT RT12
RouteCounty Highway 0
Coordinates44.1394, -76.06779
Functional classRural Minor 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
Deck8 Very GoodNo problems noted.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating73 US tons
Inventory rating53 US tons

Structure

Structure typeArch - Deck
MaterialPrestressed Concrete
DeckNot applicable
Main spans7
Design loadHS 25 or greater
Structure length134 ft (40.8 m)
Longest span13 ft (3.9 m)
Deck width28 ft (8.5 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,228 (2020)
Projected traffic1,719 by 2040
Trucks5%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$3.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Caroline Street over Chaumont River built?

It was built in 1915, making it 110 years old in 2025.

What condition is Caroline Street over Chaumont 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 September 2023.

How much traffic does Caroline Street over Chaumont River carry?

About 1,228 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Caroline Street over Chaumont River?

The structure is 134 ft (40.8 m) long with a longest span of 13 ft (3.9 m) and a deck 28 ft wide.

Who owns Caroline Street over Chaumont River?

It is owned by the County Highway Agency.