US Bridges

Route 8 Northbound over Main Street No. 3 NB

Fair

Fairfield County, Connecticut · 1.4 MI N of I-95 · Structure no. 03548

Built
1970
55 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
84 ft
1 main span
Daily traffic
43,800
2021 count
Owner
State
State Highway Agency

About this bridge

Route 8 Northbound over Main Street No. 3 NB is a steel stringer/multi-beam or girder carrying Route 8 Northbound over Main Street No. 3 NB in Fairfield County, Connecticut. It was built in 1970, 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 43,800 vehicles a day, roughly 5% of them trucks, projected to reach 65,082 by 2041. The structure is 84 ft (25.6 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 8 Northbound
CrossesMain Street No. 3 NB
Location1.4 MI N of I-95
RouteState Highway 8
Coordinates41.18709, -73.19273
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 rating100 US tons
Inventory rating60 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span79 ft (24.1 m)
Deck width54 ft (16.6 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,800 (2021)
Projected traffic65,082 by 2041
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 Northbound over Main Street No. 3 NB built?

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

What condition is Route 8 Northbound 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 Northbound over Main Street No. 3 NB carry?

About 43,800 vehicles per day (2021 count), of which roughly 5% are trucks.

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

The structure is 84 ft (25.6 m) long with a longest span of 79 ft (24.1 m) and a deck 54 ft wide.

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

It is owned by the State Highway Agency.