US Bridges

June Road over Mianus River

Fair

Fairfield County, Connecticut · Riverbank Road · Structure no. 05009

Built
1935
90 years old, rebuilt 2015
Condition
Fair
inspected March 2023
Type
Arch - Deck
Concrete
Length
34 ft
1 main span
Daily traffic
4,390
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

June Road over Mianus River is a concrete arch - deck carrying June Road over Mianus River in Fairfield County, Connecticut. It was built in 1935 and reconstructed in 2015, so it is 90 years old, older 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 4,390 vehicles a day, roughly 4% of them trucks, projected to reach 6,523 by 2043. The structure is 34 ft (10.4 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesJune Road
CrossesMianus River
LocationRiverbank Road
RouteCity Street 0
Coordinates41.1047, -73.58659
Functional classUrban 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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width34 ft (10.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,390 (2023)
Projected traffic6,523 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was June Road over Mianus River built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 2015.

What condition is June Road over Mianus River 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 March 2023.

How much traffic does June Road over Mianus River carry?

About 4,390 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is June Road over Mianus River?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 34 ft wide.

Who owns June Road over Mianus River?

It is owned by the City or Municipal Highway Agency.