US Bridges

RTE 11 over Black River

Fair

Jefferson County, New York · Mill ST RT11 Watertown · Structure no. 000000002220240

Built
1989
36 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
160 ft
1 main span
Daily traffic
7,133
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

RTE 11 over Black River is a steel stringer/multi-beam or girder carrying RTE 11 over Black River in Jefferson County, New York. It was built in 1989, so it is 36 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 7,133 vehicles a day, roughly 4% of them trucks, projected to reach 7,166 by 2041. The structure is 160 ft (48.8 m) long and 51 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 11
CrossesBlack River
LocationMill ST RT11 Watertown
RouteU.S. Route 11
CountyJefferson County
StateNew York
Coordinates43.97718, -75.90729
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 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 alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating70 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span155 ft (47.2 m)
Deck width51 ft (15.6 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,133 (2018)
Projected traffic7,166 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$4.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 11 over Black River built?

It was built in 1989, making it 36 years old in 2025.

What condition is RTE 11 over Black 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 May 2024.

How much traffic does RTE 11 over Black River carry?

About 7,133 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is RTE 11 over Black River?

The structure is 160 ft (48.8 m) long with a longest span of 155 ft (47.2 m) and a deck 51 ft wide.

Who owns RTE 11 over Black River?

It is owned by the City or Municipal Highway Agency.