US Bridges

SR 597 Northbound over Quinnipiac River

Fair

Hartford County, Connecticut · Ramp Route 10 to I-84 EB · Structure no. 01690

Built
1963
62 years old, rebuilt 1991
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
133 ft
1 main span
Daily traffic
4,300
2021 count
Owner
State
State Highway Agency

About this bridge

SR 597 Northbound over Quinnipiac River is a steel stringer/multi-beam or girder carrying SR 597 Northbound over Quinnipiac River in Hartford County, Connecticut. It was built in 1963 and reconstructed in 1991, so it is 62 years old, older than the Connecticut average of 56.7 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 4,300 vehicles a day, roughly 8% of them trucks, projected to reach 6,389 by 2041. The structure is 133 ft (40.6 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 597 Northbound
CrossesQuinnipiac River
LocationRamp Route 10 to I-84 EB
RouteState Highway 597
CountyHartford County
StateConnecticut
Coordinates41.57462, -72.89818
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
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 rating50 US tons
Inventory rating38.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length133 ft (40.6 m)
Longest span127 ft (38.7 m)
Deck width54 ft (16.6 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,300 (2021)
Projected traffic6,389 by 2041
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 597 Northbound over Quinnipiac River built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1991.

What condition is SR 597 Northbound over Quinnipiac 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 April 2023.

How much traffic does SR 597 Northbound over Quinnipiac River carry?

About 4,300 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is SR 597 Northbound over Quinnipiac River?

The structure is 133 ft (40.6 m) long with a longest span of 127 ft (38.7 m) and a deck 54 ft wide.

Who owns SR 597 Northbound over Quinnipiac River?

It is owned by the State Highway Agency.