US Bridges

Liberty Grove Road over Rock Run Creek

Poor

Cecil County, Maryland · 0.7 N of Old Schoolhouse · Structure no. 200000CE0112010

Built
1940
85 years old
Condition
Poor
inspected July 2023
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
918
2023 count
Owner
County
County Highway Agency

About this bridge

Liberty Grove Road over Rock Run Creek is a concrete slab carrying Liberty Grove Road over Rock Run Creek in Cecil County, Maryland. It was built in 1940, so it is 85 years old, older than the Maryland average of 52.6 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 918 vehicles a day, roughly 5% of them trucks, projected to reach 1,236 by 2043. The structure is 23 ft (7.1 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLiberty Grove Road
CrossesRock Run Creek
Location0.7 N of Old Schoolhouse
RouteCounty Highway 715
CountyCecil County
StateMaryland
Coordinates39.61816, -76.12603
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (7.1 m)
Longest span21 ft (6.4 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic918 (2023)
Projected traffic1,236 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$22,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Liberty Grove Road over Rock Run Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Liberty Grove Road over Rock Run 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 July 2023.

How much traffic does Liberty Grove Road over Rock Run Creek carry?

About 918 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Liberty Grove Road over Rock Run Creek?

The structure is 23 ft (7.1 m) long with a longest span of 21 ft (6.4 m) and a deck 26 ft wide.

Who owns Liberty Grove Road over Rock Run Creek?

It is owned by the County Highway Agency.