US Bridges

Silvermine Road over Housatonic RR

Fair

Fairfield County, Connecticut · 0.5 MI East of US Rt 202 · Structure no. 05747

Built
1910
115 years old, rebuilt 1989
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
113 ft
3 main spans
Daily traffic
4,780
2023 count
Owner
Unknown
Unknown

About this bridge

Silvermine Road over Housatonic RR is a steel continuous stringer/multi-beam or girder carrying Silvermine Road over Housatonic RR in Fairfield County, Connecticut. It was built in 1910 and reconstructed in 1989, so it is 115 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 4,780 vehicles a day, roughly 4% of them trucks, projected to reach 7,103 by 2043. The structure is 113 ft (34.4 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSilvermine Road
CrossesHousatonic RR
Location0.5 MI East of US Rt 202
RouteCity Street 0
CountyFairfield County
StateConnecticut
Coordinates41.46791, -73.3974
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length113 ft (34.4 m)
Longest span35 ft (10.7 m)
Deck width30 ft (9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,780 (2023)
Projected traffic7,103 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerUnknown
Maintained byOther Local 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 Silvermine Road over Housatonic RR built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1989.

What condition is Silvermine Road over Housatonic RR 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 June 2023.

How much traffic does Silvermine Road over Housatonic RR carry?

About 4,780 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Silvermine Road over Housatonic RR?

The structure is 113 ft (34.4 m) long with a longest span of 35 ft (10.7 m) and a deck 30 ft wide.

Who owns Silvermine Road over Housatonic RR?

It is owned by the Unknown and maintained by the Other Local Agency.