US Bridges

Mattison RD over Trout Brook

Poor

Oswego County, New York · 3.5 MI NW of Altmar · Structure no. 000000003208680

Built
2006
19 years old
Condition
Poor
inspected April 2024
Type
Culvert
Steel
Length
32 ft
2 main spans
Daily traffic
97
2017 count
Owner
County
County Highway Agency

About this bridge

Mattison RD over Trout Brook is a steel culvert carrying Mattison RD over Trout Brook in Oswego County, New York. It was built in 2006, so it is 19 years old, younger 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 97 vehicles a day, roughly 9% of them trucks, projected to reach 136 by 2037. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMattison RD
CrossesTrout Brook
Location3.5 MI NW of Altmar
CountyOswego County
StateNew York
Coordinates43.55088, -76.03729
Functional classRural Local

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
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic97 (2017)
Projected traffic136 by 2037
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$262,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mattison RD over Trout Brook built?

It was built in 2006, making it 19 years old in 2025.

What condition is Mattison RD over Trout Brook 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 April 2024.

How much traffic does Mattison RD over Trout Brook carry?

About 97 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is Mattison RD over Trout Brook?

The structure is 32 ft (9.8 m) long with a longest span of 14 ft (4.3 m).

Who owns Mattison RD over Trout Brook?

It is owned by the County Highway Agency.