US Bridges

Laphams Mills RD over RTE I87 RTE I87

Fair

Clinton County, New York · 1.3 MI N JCT Rts I-87+442 · Structure no. 000000001033930

Built
1961
64 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
264 ft
5 main spans
Daily traffic
1,342
2016 count
Owner
State
State Highway Agency

About this bridge

Laphams Mills RD over RTE I87 RTE I87 is a prestressed concrete box beam or girders - multiple carrying Laphams Mills RD over RTE I87 RTE I87 in Clinton County, New York. It was built in 1961, so it is 64 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 5 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 1,342 vehicles a day, roughly 3% of them trucks, projected to reach 1,879 by 2036. The structure is 264 ft (80.5 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesLaphams Mills RD
CrossesRTE I87 RTE I87
Location1.3 MI N JCT Rts I-87+442
CountyClinton County
StateNew York
Coordinates44.59587, -73.4969
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating30 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans5
Design loadHS 20
Structure length264 ft (80.5 m)
Longest span55 ft (16.7 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,342 (2016)
Projected traffic1,879 by 2036
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$2.6 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Laphams Mills RD over RTE I87 RTE I87 built?

It was built in 1961, making it 64 years old in 2025.

What condition is Laphams Mills RD over RTE I87 RTE I87 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 Laphams Mills RD over RTE I87 RTE I87 carry?

About 1,342 vehicles per day (2016 count), of which roughly 3% are trucks.

How long is Laphams Mills RD over RTE I87 RTE I87?

The structure is 264 ft (80.5 m) long with a longest span of 55 ft (16.7 m) and a deck 35 ft wide.

Who owns Laphams Mills RD over RTE I87 RTE I87?

It is owned by the State Highway Agency.