US Bridges

Spring Hill Road over Pequonnock River

Fair

Fairfield County, Connecticut · 0.2 MI E. of Route 25 · Structure no. 04935

Built
1965
60 years old
Condition
Fair
inspected December 2023
Type
Slab
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
3,000
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Spring Hill Road over Pequonnock River is a prestressed concrete slab carrying Spring Hill Road over Pequonnock River in Fairfield County, Connecticut. It was built in 1965, so it is 60 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 3,000 vehicles a day, roughly 2% of them trucks, projected to reach 4,458 by 2043. The structure is 29 ft (8.8 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSpring Hill Road
CrossesPequonnock River
Location0.2 MI E. of Route 25
RouteCity Street 0
CountyFairfield County
StateConnecticut
Coordinates41.29381, -73.24054
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2023)
Projected traffic4,458 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Spring Hill Road over Pequonnock River built?

It was built in 1965, making it 60 years old in 2025.

What condition is Spring Hill Road over Pequonnock 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 December 2023.

How much traffic does Spring Hill Road over Pequonnock River carry?

About 3,000 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Spring Hill Road over Pequonnock River?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 36 ft wide.

Who owns Spring Hill Road over Pequonnock River?

It is owned by the Town or Township Highway Agency.