US Bridges

Md 648H over Md 100 Ebr

Fair

Anne Arundel County, Maryland · 0.72 Mile South of Md 177 · Structure no. 100000020104010

Built
1971
54 years old, rebuilt 1978
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
154 ft
3 main spans
Daily traffic
5,802
2009 count
Owner
State
State Highway Agency

About this bridge

Md 648H over Md 100 Ebr is a steel continuous stringer/multi-beam or girder carrying Md 648H over Md 100 Ebr in Anne Arundel County, Maryland. It was built in 1971 and reconstructed in 1978, so it is 54 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 5,802 vehicles a day, roughly 8% of them trucks, projected to reach 6,344 by 2026. The structure is 154 ft (46.9 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMd 648H
CrossesMd 100 Ebr
Location0.72 Mile South of Md 177
RouteState Highway 648H
CountyAnne Arundel County
StateMaryland
Coordinates39.12083, -76.56143
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.5 US tons
Inventory rating57.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length154 ft (46.9 m)
Longest span59 ft (18 m)
Deck width42 ft (12.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,802 (2009)
Projected traffic6,344 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 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 of existing bridge without deck rehabilitation
Estimated improvement cost$429,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Md 648H over Md 100 Ebr built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1978.

What condition is Md 648H over Md 100 Ebr 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 December 2024.

How much traffic does Md 648H over Md 100 Ebr carry?

About 5,802 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 648H over Md 100 Ebr?

The structure is 154 ft (46.9 m) long with a longest span of 59 ft (18 m) and a deck 42 ft wide.

Who owns Md 648H over Md 100 Ebr?

It is owned by the State Highway Agency.