US Bridges

RTE 30A over Erie Barge Canal

Fair

Montgomery County, New York · .4 MI S JCT SH 5 & SH 30A · Structure no. 000000004021420

Built
1989
36 years old
Condition
Fair
inspected November 2024
Type
Truss - Thru
Steel
Length
407 ft
1 main span
Daily traffic
11,603
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 30A over Erie Barge Canal is a steel truss - thru carrying RTE 30A over Erie Barge Canal in Montgomery County, New York. It was built in 1989, so it is 36 years old, younger 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 11,603 vehicles a day, roughly 15% of them trucks, projected to reach 11,657 by 2041. The structure is 407 ft (124.1 m) long and 52 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesRTE 30A
CrossesErie Barge Canal
Location.4 MI S JCT SH 5 & SH 30A
RouteState Highway 30A
CountyMontgomery County
StateNew York
Coordinates42.94979, -74.36919
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating37 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadHS 25 or greater
Structure length407 ft (124.1 m)
Longest span260 ft (79.2 m)
Deck width52 ft (15.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deck17 ft (5.1 m)

Traffic and service

Average daily traffic11,603 (2020)
Projected traffic11,657 by 2041
Trucks15%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed11.8 mi (19 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$27.6 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was RTE 30A over Erie Barge Canal built?

It was built in 1989, making it 36 years old in 2025.

What condition is RTE 30A over Erie Barge Canal 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 November 2024.

How much traffic does RTE 30A over Erie Barge Canal carry?

About 11,603 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is RTE 30A over Erie Barge Canal?

The structure is 407 ft (124.1 m) long with a longest span of 260 ft (79.2 m) and a deck 52 ft wide.

Who owns RTE 30A over Erie Barge Canal?

It is owned by the State Highway Agency.