US Bridges

US Route 1 over Stony Brook

Good

New London County, Connecticut · 0.2 MI S of Route 1A · Structure no. 01898

Built
2013
12 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
56 ft
1 main span
Daily traffic
6,500
2020 count
Owner
State
State Highway Agency

About this bridge

US Route 1 over Stony Brook is a steel stringer/multi-beam or girder carrying US Route 1 over Stony Brook in New London County, Connecticut. It was built in 2013, so it is 12 years old, younger than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,500 vehicles a day, roughly 5% of them trucks, projected to reach 9,658 by 2040. The structure is 56 ft (17.1 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesUS Route 1
CrossesStony Brook
Location0.2 MI S of Route 1A
RouteU.S. Route 1
CountyNew London County
StateConnecticut
Coordinates41.34801, -71.9173
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.9 US tons
Inventory rating42.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length56 ft (17.1 m)
Longest span52 ft (15.9 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,500 (2020)
Projected traffic9,658 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US Route 1 over Stony Brook built?

It was built in 2013, making it 12 years old in 2025.

What condition is US Route 1 over Stony Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does US Route 1 over Stony Brook carry?

About 6,500 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is US Route 1 over Stony Brook?

The structure is 56 ft (17.1 m) long with a longest span of 52 ft (15.9 m) and a deck 44 ft wide.

Who owns US Route 1 over Stony Brook?

It is owned by the State Highway Agency.