US Bridges

Lower Mountain Roa over RTE 93

Fair

Niagara County, New York · 2.2 MI S JCT SH93 & SH104 · Structure no. 000000003034720

Built
1990
35 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
74 ft
1 main span
Daily traffic
1,631
2021 count
Owner
State
State Highway Agency

About this bridge

Lower Mountain Roa over RTE 93 is a prestressed concrete box beam or girders - multiple carrying Lower Mountain Roa over RTE 93 in Niagara County, New York. It was built in 1990, so it is 35 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 1,631 vehicles a day, roughly 4% of them trucks, projected to reach 1,647 by 2041. The structure is 74 ft (22.6 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLower Mountain Roa
CrossesRTE 93
Location2.2 MI S JCT SH93 & SH104
RouteCounty Highway 0
CountyNiagara County
StateNew York
Coordinates43.18555, -78.75398
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating46 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span68 ft (20.7 m)
Deck width37 ft (11.2 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,631 (2021)
Projected traffic1,647 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$1.5 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lower Mountain Roa over RTE 93 built?

It was built in 1990, making it 35 years old in 2025.

What condition is Lower Mountain Roa over RTE 93 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 September 2023.

How much traffic does Lower Mountain Roa over RTE 93 carry?

About 1,631 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Lower Mountain Roa over RTE 93?

The structure is 74 ft (22.6 m) long with a longest span of 68 ft (20.7 m) and a deck 37 ft wide.

Who owns Lower Mountain Roa over RTE 93?

It is owned by the State Highway Agency.