US Bridges

Valley Road over Silvermine River

Good

Fairfield County, Connecticut · JCT of Deep Valley Road · Structure no. 04997

Built
1951
74 years old, rebuilt 2008
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
905
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Valley Road over Silvermine River is a prestressed concrete box beam or girders - multiple carrying Valley Road over Silvermine River in Fairfield County, Connecticut. It was built in 1951 and reconstructed in 2008, so it is 74 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 905 vehicles a day, roughly 2% of them trucks, projected to reach 1,345 by 2043. The structure is 56 ft (17.2 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesValley Road
CrossesSilvermine River
LocationJCT of Deep Valley Road
RouteCity Street 0
Coordinates41.18674, -73.48749
Functional classRural Minor Collector

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating72.5 US tons
Inventory rating43.5 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length56 ft (17.2 m)
Longest span52 ft (15.9 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic905 (2023)
Projected traffic1,345 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Valley Road over Silvermine River built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2008.

What condition is Valley Road over Silvermine River 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 January 2025.

How much traffic does Valley Road over Silvermine River carry?

About 905 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Valley Road over Silvermine River?

The structure is 56 ft (17.2 m) long with a longest span of 52 ft (15.9 m) and a deck 28 ft wide.

Who owns Valley Road over Silvermine River?

It is owned by the Town or Township Highway Agency.