US Bridges

Route 8 Southbound over Pequonnock River & Trail

Fair

Fairfield County, Connecticut · 1.8 MI S of Route 15 · Structure no. 03774

Built
1971
54 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
348 ft
3 main spans
Daily traffic
29,400
2021 count
Owner
State
State Highway Agency

About this bridge

Route 8 Southbound over Pequonnock River & Trail is a steel stringer/multi-beam or girder carrying Route 8 Southbound over Pequonnock River & Trail in Fairfield County, Connecticut. It was built in 1971, so it is 54 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 5 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 29,400 vehicles a day, roughly 9% of them trucks, projected to reach 43,685 by 2041. The structure is 348 ft (106.1 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 8 Southbound
CrossesPequonnock River & Trail
Location1.8 MI S of Route 15
RouteState Highway 8
Coordinates41.22257, -73.1786
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.6 US tons
Inventory rating25.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length348 ft (106.1 m)
Longest span114 ft (34.7 m)
Deck width53 ft (16.3 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,400 (2021)
Projected traffic43,685 by 2041
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 8 Southbound over Pequonnock River & Trail built?

It was built in 1971, making it 54 years old in 2025.

What condition is Route 8 Southbound over Pequonnock River & Trail 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 February 2024.

How much traffic does Route 8 Southbound over Pequonnock River & Trail carry?

About 29,400 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is Route 8 Southbound over Pequonnock River & Trail?

The structure is 348 ft (106.1 m) long with a longest span of 114 ft (34.7 m) and a deck 53 ft wide.

Who owns Route 8 Southbound over Pequonnock River & Trail?

It is owned by the State Highway Agency.