US Bridges

Brock Street over Pequonnock River

Good

Fairfield County, Connecticut · 250 Ft E of Route 127 · Structure no. 04936

Built
1979
46 years old
Condition
Good
inspected December 2023
Type
Slab
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
1,009
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Brock Street over Pequonnock River is a prestressed concrete slab carrying Brock Street over Pequonnock River in Fairfield County, Connecticut. It was built in 1979, so it is 46 years old, younger 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 1,009 vehicles a day, roughly 2% of them trucks, projected to reach 1,499 by 2043. The structure is 45 ft (13.7 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBrock Street
CrossesPequonnock River
Location250 Ft E of Route 127
RouteCity Street 0
Coordinates41.2405, -73.18625
Functional classUrban Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
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 spans1
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span43 ft (13.1 m)
Deck width30 ft (9.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck13 ft (3.9 m)

Traffic and service

Average daily traffic1,009 (2023)
Projected traffic1,499 by 2043
Trucks2%
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 Brock Street over Pequonnock River built?

It was built in 1979, making it 46 years old in 2025.

What condition is Brock Street over Pequonnock 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 December 2023.

How much traffic does Brock Street over Pequonnock River carry?

About 1,009 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Brock Street over Pequonnock River?

The structure is 45 ft (13.7 m) long with a longest span of 43 ft (13.1 m) and a deck 30 ft wide.

Who owns Brock Street over Pequonnock River?

It is owned by the Town or Township Highway Agency.