US Bridges

London Bridge Road over Morgan Run

Fair

Carroll County, Maryland · 1.7 M S of Md 32 · Structure no. 200000CL0323010

Built
1956
69 years old, rebuilt 1989
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
787
2021 count
Owner
County
County Highway Agency

About this bridge

London Bridge Road over Morgan Run is a steel stringer/multi-beam or girder carrying London Bridge Road over Morgan Run in Carroll County, Maryland. It was built in 1956 and reconstructed in 1989, so it is 69 years old, older 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 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 787 vehicles a day, roughly 8% of them trucks, projected to reach 1,290 by 2041. The structure is 63 ft (19.2 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLondon Bridge Road
CrossesMorgan Run
Location1.7 M S of Md 32
RouteCounty Highway 544
CountyCarroll County
StateMaryland
Coordinates39.45213, -76.95522
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating65.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length63 ft (19.2 m)
Longest span59 ft (18 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic787 (2021)
Projected traffic1,290 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 London Bridge Road over Morgan Run built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1989.

What condition is London Bridge Road over Morgan 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 July 2023.

How much traffic does London Bridge Road over Morgan Run carry?

About 787 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is London Bridge Road over Morgan Run?

The structure is 63 ft (19.2 m) long with a longest span of 59 ft (18 m) and a deck 26 ft wide.

Who owns London Bridge Road over Morgan Run?

It is owned by the County Highway Agency.