US Bridges

Route 183 over Sandy Brook

Fair

Litchfield County, Connecticut · 2 Miles North of RTE 182A · Structure no. 01498

Built
1958
67 years old, rebuilt 1994
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
65 ft
1 main span
Daily traffic
1,100
2021 count
Owner
State
State Highway Agency

About this bridge

Route 183 over Sandy Brook is a steel stringer/multi-beam or girder carrying Route 183 over Sandy Brook in Litchfield County, Connecticut. It was built in 1958 and reconstructed in 1994, so it is 67 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 1,100 vehicles a day, roughly 2% of them trucks, projected to reach 1,634 by 2041. The structure is 65 ft (19.8 m) long and 39 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesRoute 183
CrossesSandy Brook
Location2 Miles North of RTE 182A
RouteState Highway 183
Coordinates42.01429, -73.11263
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating57 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length65 ft (19.8 m)
Longest span58 ft (17.7 m)
Deck width39 ft (12 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2021)
Projected traffic1,634 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Route 183 over Sandy Brook built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1994.

What condition is Route 183 over Sandy 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 July 2024.

How much traffic does Route 183 over Sandy Brook carry?

About 1,100 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Route 183 over Sandy Brook?

The structure is 65 ft (19.8 m) long with a longest span of 58 ft (17.7 m) and a deck 39 ft wide.

Who owns Route 183 over Sandy Brook?

It is owned by the State Highway Agency.