US Bridges

Dowd Street over Mill Brook

Fair

Hartford County, Connecticut · 50 Feet West of Route 176 · Structure no. 04543

Built
1969
56 years old
Condition
Fair
inspected May 2024
Type
Slab
Prestressed Concrete
Length
70 ft
3 main spans
Daily traffic
2,980
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Dowd Street over Mill Brook is a prestressed concrete slab carrying Dowd Street over Mill Brook in Hartford County, Connecticut. It was built in 1969, so it is 56 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 2,980 vehicles a day, roughly 4% of them trucks, projected to reach 4,428 by 2044. The structure is 70 ft (21.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesDowd Street
CrossesMill Brook
Location50 Feet West of Route 176
RouteCity Street 0
Coordinates41.70465, -72.72582
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span31 ft (9.4 m)
Deck width42 ft (12.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,980 (2024)
Projected traffic4,428 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Dowd Street over Mill Brook built?

It was built in 1969, making it 56 years old in 2025.

What condition is Dowd Street over Mill 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 May 2024.

How much traffic does Dowd Street over Mill Brook carry?

About 2,980 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Dowd Street over Mill Brook?

The structure is 70 ft (21.3 m) long with a longest span of 31 ft (9.4 m) and a deck 42 ft wide.

Who owns Dowd Street over Mill Brook?

It is owned by the Town or Township Highway Agency.