US Bridges

RTE 20A over Conesus Lk Outlet

Fair

Livingston County, New York · .1 MI W JCT US20A & SH15 · Structure no. 000000001016210

Built
1957
68 years old, rebuilt 2007
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
6,910
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 20A over Conesus Lk Outlet is a prestressed concrete box beam or girders - multiple carrying RTE 20A over Conesus Lk Outlet in Livingston County, New York. It was built in 1957 and reconstructed in 2007, so it is 68 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 6,910 vehicles a day, roughly 4% of them trucks, projected to reach 6,952 by 2041. The structure is 57 ft (17.4 m) long and 60 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesRTE 20A
CrossesConesus Lk Outlet
Location.1 MI W JCT US20A & SH15
RouteU.S. Route 20A
CountyLivingston County
StateNew York
Coordinates42.83629, -77.70594
Functional classRural Minor 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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating96 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length57 ft (17.4 m)
Longest span53 ft (16.2 m)
Deck width60 ft (18.2 m)
Roadway width47 ft (14.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,910 (2020)
Projected traffic6,952 by 2041
Trucks4%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

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$2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 20A over Conesus Lk Outlet built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2007.

What condition is RTE 20A over Conesus Lk Outlet 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 August 2023.

How much traffic does RTE 20A over Conesus Lk Outlet carry?

About 6,910 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is RTE 20A over Conesus Lk Outlet?

The structure is 57 ft (17.4 m) long with a longest span of 53 ft (16.2 m) and a deck 60 ft wide.

Who owns RTE 20A over Conesus Lk Outlet?

It is owned by the State Highway Agency.