US Bridges

River Road over C&o Canal

Good

Allegany County, Maryland · 0.1 Miles from North Bran · Structure no. 3100017P0000000

Built
2015
10 years old
Condition
Good
inspected November 2023
Type
Slab
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
100
2017 count
Owner
Federal
National Park Service

About this bridge

River Road over C&o Canal is a prestressed concrete slab carrying River Road over C&o Canal in Allegany County, Maryland. It was built in 2015, so it is 10 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 60% of them trucks, projected to reach 120 by 2037. The structure is 44 ft (13.4 m) long and 27 ft wide.

Location

Open in Google Maps
CarriesRiver Road
CrossesC&o Canal
Location0.1 Miles from North Bran
RouteFederal Lands Road 421
CountyAllegany County
StateMaryland
Coordinates39.588, -78.73814
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.2 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length44 ft (13.4 m)
Longest span40 ft (12.2 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2017)
Projected traffic120 by 2037
Trucks60%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$26,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was River Road over C&o Canal built?

It was built in 2015, making it 10 years old in 2025.

What condition is River Road over C&o Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does River Road over C&o Canal carry?

About 100 vehicles per day (2017 count), of which roughly 60% are trucks.

How long is River Road over C&o Canal?

The structure is 44 ft (13.4 m) long with a longest span of 40 ft (12.2 m) and a deck 27 ft wide.

Who owns River Road over C&o Canal?

It is owned by the National Park Service.