US Bridges

RTE 947A over Northrup Creek

Fair

Monroe County, New York · 0.6 MI NW of Long Pond RD · Structure no. 000000001035949

Built
1954
71 years old
Condition
Fair
inspected July 2023
Type
Frame
Concrete
Length
51 ft
2 main spans
Daily traffic
10,809
2019 count
Owner
State
State Highway Agency

About this bridge

RTE 947A over Northrup Creek is a concrete frame carrying RTE 947A over Northrup Creek in Monroe County, New York. It was built in 1954, so it is 71 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 10,809 vehicles a day, roughly 1% of them trucks, projected to reach 11,274 by 2041. The structure is 51 ft (15.5 m) long and 95 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesRTE 947A
CrossesNorthrup Creek
Location0.6 MI NW of Long Pond RD
RouteState Highway 947A
CountyMonroe County
StateNew York
Coordinates43.28634, -77.70583
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection7 GoodSome minor problems.
Last inspectionJuly 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.4 US tons
Inventory rating32.4 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length51 ft (15.5 m)
Longest span21 ft (6.4 m)
Deck width95 ft (28.9 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,809 (2019)
Projected traffic11,274 by 2041
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 947A over Northrup Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is RTE 947A over Northrup Creek 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 July 2023.

How much traffic does RTE 947A over Northrup Creek carry?

About 10,809 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is RTE 947A over Northrup Creek?

The structure is 51 ft (15.5 m) long with a longest span of 21 ft (6.4 m) and a deck 95 ft wide.

Who owns RTE 947A over Northrup Creek?

It is owned by the State Highway Agency.