US Bridges

Rock House Road #1 over Aspetuck River

Fair

Fairfield County, Connecticut · 0.3 MI W of Valley Road · Structure no. 04932

Built
1975
50 years old
Condition
Fair
inspected March 2024
Type
Culvert
Steel
Length
43 ft
3 main spans
Daily traffic
909
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Rock House Road #1 over Aspetuck River is a steel culvert carrying Rock House Road #1 over Aspetuck River in Fairfield County, Connecticut. It was built in 1975, so it is 50 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 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 909 vehicles a day, roughly 7% of them trucks, projected to reach 1,351 by 2044. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRock House Road #1
CrossesAspetuck River
Location0.3 MI W of Valley Road
RouteCity Street 0
CountyFairfield County
StateConnecticut
Coordinates41.28622, -73.33295
Functional classRural 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.8 US tons
Inventory rating70.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic909 (2024)
Projected traffic1,351 by 2044
Trucks7%
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 Rock House Road #1 over Aspetuck River built?

It was built in 1975, making it 50 years old in 2025.

What condition is Rock House Road #1 over Aspetuck 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 March 2024.

How much traffic does Rock House Road #1 over Aspetuck River carry?

About 909 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Rock House Road #1 over Aspetuck River?

The structure is 43 ft (13.1 m) long with a longest span of 13 ft (4 m).

Who owns Rock House Road #1 over Aspetuck River?

It is owned by the Town or Township Highway Agency.