US Bridges

Route 106 over Metro North Railroad

Fair

Fairfield County, Connecticut · 0.8 MI N of US Route 1 · Structure no. 04398

Built
1982
43 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
213 ft
3 main spans
Daily traffic
15,500
2023 count
Owner
State
State Highway Agency

About this bridge

Route 106 over Metro North Railroad is a steel continuous stringer/multi-beam or girder carrying Route 106 over Metro North Railroad in Fairfield County, Connecticut. It was built in 1982, so it is 43 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 15,500 vehicles a day, roughly 9% of them trucks, projected to reach 23,031 by 2043. The structure is 213 ft (64.9 m) long and 51 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRoute 106
CrossesMetro North Railroad
Location0.8 MI N of US Route 1
RouteState Highway 106
Coordinates41.06937, -73.51614
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length213 ft (64.9 m)
Longest span87 ft (26.6 m)
Deck width51 ft (15.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,500 (2023)
Projected traffic23,031 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Route 106 over Metro North Railroad built?

It was built in 1982, making it 43 years old in 2025.

What condition is Route 106 over Metro North Railroad 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 October 2024.

How much traffic does Route 106 over Metro North Railroad carry?

About 15,500 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Route 106 over Metro North Railroad?

The structure is 213 ft (64.9 m) long with a longest span of 87 ft (26.6 m) and a deck 51 ft wide.

Who owns Route 106 over Metro North Railroad?

It is owned by the State Highway Agency.