US Bridges

Old Kings Highway over Stony Brook

Poor

Fairfield County, Connecticut · 700 Feet East of Route 1 · Structure no. 04991

Built
1935
90 years old
Condition
Poor
inspected November 2023
Type
Slab
Concrete
Length
27 ft
1 main span
Daily traffic
3,820
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Old Kings Highway over Stony Brook is a concrete slab carrying Old Kings Highway over Stony Brook in Fairfield County, Connecticut. It was built in 1935, so it is 90 years old, older than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,820 vehicles a day, roughly 2% of them trucks, projected to reach 5,676 by 2043. The structure is 27 ft (8.2 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOld Kings Highway
CrossesStony Brook
Location700 Feet East of Route 1
RouteCity Street 0
Coordinates41.06277, -73.47993
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating35.1 US tons
Inventory rating27.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,820 (2023)
Projected traffic5,676 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Old Kings Highway over Stony Brook built?

It was built in 1935, making it 90 years old in 2025.

What condition is Old Kings Highway over Stony Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does Old Kings Highway over Stony Brook carry?

About 3,820 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Old Kings Highway over Stony Brook?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 33 ft wide.

Who owns Old Kings Highway over Stony Brook?

It is owned by the Town or Township Highway Agency.