US Bridges

Commerce Road over Tom Brook

Fair

Fairfield County, Connecticut · 0.7 Miles Sout of Route 6 · Structure no. 06906

Built
1985
40 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
100
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Commerce Road over Tom Brook is a concrete culvert carrying Commerce Road over Tom Brook in Fairfield County, Connecticut. It was built in 1985, so it is 40 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 149 by 2042. The structure is 35 ft (10.7 m) long and 31 ft wide.

CarriesCommerce Road
CrossesTom Brook
Location0.7 Miles Sout of Route 6
RouteCity Street 0
Coordinates41.41461, -73.28364
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span10 ft (3 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic149 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Commerce Road over Tom Brook built?

It was built in 1985, making it 40 years old in 2025.

What condition is Commerce Road over Tom 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 Commerce Road over Tom Brook carry?

About 100 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Commerce Road over Tom Brook?

The structure is 35 ft (10.7 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns Commerce Road over Tom Brook?

It is owned by the Town or Township Highway Agency.