US Bridges

Route 108 over Route 15 TR 810

Good

Fairfield County, Connecticut · 2.7 MI N of US Route 1 · Structure no. 05275

Built
1982
43 years old
Condition
Good
inspected March 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
82 ft
1 main span
Daily traffic
25,200
2013 count
Owner
State
State Highway Agency

About this bridge

Route 108 over Route 15 TR 810 is a steel stringer/multi-beam or girder carrying Route 108 over Route 15 TR 810 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 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 25,200 vehicles a day, roughly 6% of them trucks, projected to reach 37,445 by 2033. The structure is 82 ft (25 m) long and 77 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 108
CrossesRoute 15 TR 810
Location2.7 MI N of US Route 1
RouteState Highway 108
Coordinates41.23271, -73.15747
Functional classUrban Minor 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.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.4 US tons
Inventory rating55 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length82 ft (25 m)
Longest span78 ft (23.8 m)
Deck width77 ft (23.6 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,200 (2013)
Projected traffic37,445 by 2033
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Route 108 over Route 15 TR 810 built?

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

What condition is Route 108 over Route 15 TR 810 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 March 2021.

How much traffic does Route 108 over Route 15 TR 810 carry?

About 25,200 vehicles per day (2013 count), of which roughly 6% are trucks.

How long is Route 108 over Route 15 TR 810?

The structure is 82 ft (25 m) long with a longest span of 78 ft (23.8 m) and a deck 77 ft wide.

Who owns Route 108 over Route 15 TR 810?

It is owned by the State Highway Agency.