US Bridges

Monkton Road over Charles Run

Fair

Baltimore County, Maryland · 500 Ft S Shepperd Road · Structure no. 200000B-0012010

Built
1976
49 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
2,343
2023 count
Owner
County
County Highway Agency

About this bridge

Monkton Road over Charles Run is a steel stringer/multi-beam or girder carrying Monkton Road over Charles Run in Baltimore County, Maryland. It was built in 1976, so it is 49 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 2,343 vehicles a day, roughly 5% of them trucks, projected to reach 3,515 by 2043. The structure is 54 ft (16.5 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMonkton Road
CrossesCharles Run
Location500 Ft S Shepperd Road
RouteCounty Highway 229
CountyBaltimore County
StateMaryland
Coordinates39.57659, -76.61065
Functional classRural Minor 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating110.1 US tons
Inventory rating61.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span48 ft (14.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,343 (2023)
Projected traffic3,515 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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Monkton Road over Charles Run built?

It was built in 1976, making it 49 years old in 2025.

What condition is Monkton Road over Charles Run 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 April 2023.

How much traffic does Monkton Road over Charles Run carry?

About 2,343 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Monkton Road over Charles Run?

The structure is 54 ft (16.5 m) long with a longest span of 48 ft (14.6 m) and a deck 30 ft wide.

Who owns Monkton Road over Charles Run?

It is owned by the County Highway Agency.