US Bridges

Route 8 Southbound over Main Street No. 3 NB

Fair

Fairfield County, Connecticut · 1.5 Mi. North of I-95 · Structure no. 03549

Built
1970
55 years old, rebuilt 1994
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
66 ft
1 main span
Daily traffic
44,200
2023 count
Owner
State
State Highway Agency

About this bridge

Route 8 Southbound over Main Street No. 3 NB is a steel stringer/multi-beam or girder carrying Route 8 Southbound over Main Street No. 3 NB in Fairfield County, Connecticut. It was built in 1970 and reconstructed in 1994, so it is 55 years old, younger 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 44,200 vehicles a day, roughly 5% of them trucks, projected to reach 65,677 by 2043. The structure is 66 ft (20 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 8 Southbound
CrossesMain Street No. 3 NB
Location1.5 Mi. North of I-95
RouteState Highway 8
Coordinates41.18739, -73.19309
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.4 US tons
Inventory rating69.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length66 ft (20 m)
Longest span56 ft (17.1 m)
Deck width55 ft (16.9 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,200 (2023)
Projected traffic65,677 by 2043
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Route 8 Southbound over Main Street No. 3 NB built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1994.

What condition is Route 8 Southbound over Main Street No. 3 NB 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 2024.

How much traffic does Route 8 Southbound over Main Street No. 3 NB carry?

About 44,200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Route 8 Southbound over Main Street No. 3 NB?

The structure is 66 ft (20 m) long with a longest span of 56 ft (17.1 m) and a deck 55 ft wide.

Who owns Route 8 Southbound over Main Street No. 3 NB?

It is owned by the State Highway Agency.