US Bridges

Mill Street over Quassaick Creek

Poor

Orange County, New York · In Newburgh · Structure no. 000000002223610

Built
1883
142 years old
Condition
Poor
inspected November 2024
Type
Arch - Deck
Masonry
Length
340 ft
6 main spans
Daily traffic
4,507
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mill Street over Quassaick Creek is a masonry arch - deck carrying Mill Street over Quassaick Creek in Orange County, New York. It was built in 1883, so it is 142 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 4,507 vehicles a day, roughly 3% of them trucks, projected to reach 4,552 by 2038. The structure is 340 ft (103.6 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMill Street
CrossesQuassaick Creek
LocationIn Newburgh
RouteCity Street 0
Coordinates41.49131, -74.02082
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating41.4 US tons
Inventory rating11.1 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans6
Design loadUnknown
Structure length340 ft (103.6 m)
Longest span56 ft (17 m)
Deck width42 ft (12.9 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,507 (2017)
Projected traffic4,552 by 2038
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$23.6 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill Street over Quassaick Creek built?

It was built in 1883, making it 142 years old in 2025.

What condition is Mill Street over Quassaick Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Mill Street over Quassaick Creek carry?

About 4,507 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Mill Street over Quassaick Creek?

The structure is 340 ft (103.6 m) long with a longest span of 56 ft (17 m) and a deck 42 ft wide.

Who owns Mill Street over Quassaick Creek?

It is owned by the City or Municipal Highway Agency.