US Bridges

RTE 231 over 908M908M07021063 RTE 90

Fair

Suffolk County, New York · JCT SH 231 & Ssp · Structure no. 000000001042180

Built
1950
75 years old
Condition
Fair
inspected March 2024
Type
Frame
Concrete Continuous
Length
108 ft
2 main spans
Daily traffic
45,280
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 231 over 908M908M07021063 RTE 90 is a concrete continuous frame carrying RTE 231 over 908M908M07021063 RTE 90 in Suffolk County, New York. It was built in 1950, so it is 75 years old, older than the New York average of 53 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 45,280 vehicles a day, roughly 6% of them trucks, projected to reach 53,860 by 2041. The structure is 108 ft (32.9 m) long and 65 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 231
Crosses908M908M07021063 RTE 90
LocationJCT SH 231 & Ssp
RouteState Highway 231
CountySuffolk County
StateNew York
Coordinates40.73211, -73.32067
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length108 ft (32.9 m)
Longest span51 ft (15.5 m)
Deck width65 ft (19.8 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,280 (2020)
Projected traffic53,860 by 2041
Trucks6%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$6.4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 231 over 908M908M07021063 RTE 90 built?

It was built in 1950, making it 75 years old in 2025.

What condition is RTE 231 over 908M908M07021063 RTE 90 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 2024.

How much traffic does RTE 231 over 908M908M07021063 RTE 90 carry?

About 45,280 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is RTE 231 over 908M908M07021063 RTE 90?

The structure is 108 ft (32.9 m) long with a longest span of 51 ft (15.5 m) and a deck 65 ft wide.

Who owns RTE 231 over 908M908M07021063 RTE 90?

It is owned by the State Highway Agency.