US Bridges

Route 106 over Five Mile River

Good

Fairfield County, Connecticut · 475 Ft S of Route 123 · Structure no. 05706

Built
1989
36 years old
Condition
Good
inspected April 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
6,600
2020 count
Owner
State
State Highway Agency

About this bridge

Route 106 over Five Mile River is a steel stringer/multi-beam or girder carrying Route 106 over Five Mile River in Fairfield County, Connecticut. It was built in 1989, so it is 36 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 6,600 vehicles a day, roughly 3% of them trucks, projected to reach 9,807 by 2040. The structure is 41 ft (12.5 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 106
CrossesFive Mile River
Location475 Ft S of Route 123
RouteState Highway 106
Coordinates41.14783, -73.4835
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating108.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span35 ft (10.7 m)
Deck width41 ft (12.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,600 (2020)
Projected traffic9,807 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 106 over Five Mile River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Route 106 over Five Mile 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 April 2022.

How much traffic does Route 106 over Five Mile River carry?

About 6,600 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Route 106 over Five Mile River?

The structure is 41 ft (12.5 m) long with a longest span of 35 ft (10.7 m) and a deck 41 ft wide.

Who owns Route 106 over Five Mile River?

It is owned by the State Highway Agency.