US Bridges

Route 159 over Stony Brook

Fair

Hartford County, Connecticut · 1 MI No of Windsor Lks Tl · Structure no. 00455

Built
1929
96 years old, rebuilt 1996
Condition
Fair
inspected June 2023
Type
Arch - Deck
Concrete
Length
258 ft
1 main span
Daily traffic
6,600
2016 count
Owner
State
State Highway Agency

About this bridge

Route 159 over Stony Brook is a concrete arch - deck carrying Route 159 over Stony Brook in Hartford County, Connecticut. It was built in 1929 and reconstructed in 1996, so it is 96 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 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 6,600 vehicles a day, roughly 5% of them trucks, projected to reach 9,807 by 2036. The structure is 258 ft (78.7 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRoute 159
CrossesStony Brook
Location1 MI No of Windsor Lks Tl
RouteState Highway 159
CountyHartford County
StateConnecticut
Coordinates41.95832, -72.62734
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating54 US tons
Inventory rating32.3 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+8 approach)
Design loadH 15
Structure length258 ft (78.7 m)
Longest span142 ft (43.3 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,600 (2016)
Projected traffic9,807 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 159 over Stony Brook built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1996.

What condition is Route 159 over Stony Brook 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 June 2023.

How much traffic does Route 159 over Stony Brook carry?

About 6,600 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Route 159 over Stony Brook?

The structure is 258 ft (78.7 m) long with a longest span of 142 ft (43.3 m) and a deck 33 ft wide.

Who owns Route 159 over Stony Brook?

It is owned by the State Highway Agency.