US Bridges

North Main Street over Norwalk River

Fair

Fairfield County, Connecticut · 250 Ft W of Route 107 · Structure no. 05509

Built
1953
72 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
57 ft
1 main span
Daily traffic
103
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

North Main Street over Norwalk River is a steel stringer/multi-beam or girder carrying North Main Street over Norwalk River in Fairfield County, Connecticut. It was built in 1953, so it is 72 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 103 vehicles a day, roughly 2% of them trucks, projected to reach 153 by 2043. The structure is 57 ft (17.4 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNorth Main Street
CrossesNorwalk River
Location250 Ft W of Route 107
RouteCity Street 0
Coordinates41.25855, -73.42862
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating87.6 US tons
Inventory rating52.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span52 ft (15.9 m)
Deck width39 ft (11.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic103 (2023)
Projected traffic153 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 North Main Street over Norwalk River built?

It was built in 1953, making it 72 years old in 2025.

What condition is North Main Street over Norwalk 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 November 2023.

How much traffic does North Main Street over Norwalk River carry?

About 103 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is North Main Street over Norwalk River?

The structure is 57 ft (17.4 m) long with a longest span of 52 ft (15.9 m) and a deck 39 ft wide.

Who owns North Main Street over Norwalk River?

It is owned by the Town or Township Highway Agency.