US Bridges

Merrick Road over Carman Creek

Fair

Nassau County, New York · 1 MI SE of Massapequa · Structure no. 000000003360520

Built
1972
53 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
26,377
2020 count
Owner
County
County Highway Agency

About this bridge

Merrick Road over Carman Creek is a concrete continuous culvert carrying Merrick Road over Carman Creek in Nassau County, New York. It was built in 1972, so it is 53 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 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 26,377 vehicles a day, roughly 3% of them trucks, projected to reach 32,042 by 2041. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 2.5 mi (4 km).

CarriesMerrick Road
CrossesCarman Creek
Location1 MI SE of Massapequa
RouteCounty Highway 0
Coordinates40.66922, -73.43315
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating69 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,377 (2020)
Projected traffic32,042 by 2041
Trucks3%
Lanes on structure5
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Merrick Road over Carman Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Merrick Road over Carman 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 April 2024.

How much traffic does Merrick Road over Carman Creek carry?

About 26,377 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Merrick Road over Carman Creek?

The structure is 28 ft (8.5 m) long with a longest span of 13 ft (4 m).

Who owns Merrick Road over Carman Creek?

It is owned by the County Highway Agency.