US Bridges

Old Mill Lane over Water Supply Brook

Fair

Hartford County, Connecticut · 1 Mile North of Route 4 · Structure no. 06075

Built
1983
42 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
275
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Old Mill Lane over Water Supply Brook is a concrete culvert carrying Old Mill Lane over Water Supply Brook in Hartford County, Connecticut. It was built in 1983, so it is 42 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 275 vehicles a day, roughly 7% of them trucks, projected to reach 409 by 2044. The structure is 21 ft (6.4 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOld Mill Lane
CrossesWater Supply Brook
Location1 Mile North of Route 4
RouteCity Street 0
Coordinates41.75558, -72.77046
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width46 ft (13.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2024)
Projected traffic409 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Old Mill Lane over Water Supply Brook built?

It was built in 1983, making it 42 years old in 2025.

What condition is Old Mill Lane over Water Supply Brook 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 April 2024.

How much traffic does Old Mill Lane over Water Supply Brook carry?

About 275 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Old Mill Lane over Water Supply Brook?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 46 ft wide.

Who owns Old Mill Lane over Water Supply Brook?

It is owned by the Town or Township Highway Agency.