US Bridges

Route 8 Southbound over John Street

Good

Fairfield County, Connecticut · 0.6 MI N of I-95 · Structure no. 03540B

Built
1968
57 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
68 ft
1 main span
Daily traffic
45,600
2021 count
Owner
State
State Highway Agency

About this bridge

Route 8 Southbound over John Street is a steel stringer/multi-beam or girder carrying Route 8 Southbound over John Street in Fairfield County, Connecticut. It was built in 1968, so it is 57 years old, older than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 45,600 vehicles a day, roughly 5% of them trucks, projected to reach 67,757 by 2041. The structure is 68 ft (20.7 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 8 Southbound
CrossesJohn Street
Location0.6 MI N of I-95
RouteState Highway 8
Coordinates41.1757, -73.19551
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.4 US tons
Inventory rating59.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span65 ft (19.8 m)
Deck width52 ft (16 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,600 (2021)
Projected traffic67,757 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 Southbound over John Street built?

It was built in 1968, making it 57 years old in 2025.

What condition is Route 8 Southbound over John Street in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does Route 8 Southbound over John Street carry?

About 45,600 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Route 8 Southbound over John Street?

The structure is 68 ft (20.7 m) long with a longest span of 65 ft (19.8 m) and a deck 52 ft wide.

Who owns Route 8 Southbound over John Street?

It is owned by the State Highway Agency.