US Bridges

Md 100 Wbr over Deep Run

Fair

Anne Arundel County, Maryland · On Howard County Line · Structure no. 100000020178014

Built
1996
29 years old, rebuilt 2019
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
869 ft
5 main spans
Daily traffic
56,840
2022 count
Owner
State
State Highway Agency

About this bridge

Md 100 Wbr over Deep Run is a steel continuous stringer/multi-beam or girder carrying Md 100 Wbr over Deep Run in Anne Arundel County, Maryland. It was built in 1996 and reconstructed in 2019, so it is 29 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 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 56,840 vehicles a day, roughly 8% of them trucks, projected to reach 33,427 by 2040. The structure is 869 ft (264.9 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMd 100 Wbr
CrossesDeep Run
LocationOn Howard County Line
RouteState Highway 100
Coordinates39.17922, -76.74046
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.5 US tons
Inventory rating46.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length869 ft (264.9 m)
Longest span241 ft (73.5 m)
Deck width54 ft (16.5 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56,840 (2022)
Projected traffic33,427 by 2040
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Md 100 Wbr over Deep Run built?

It was built in 1996, making it 29 years old in 2025. It was reconstructed in 2019.

What condition is Md 100 Wbr over Deep 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 2024.

How much traffic does Md 100 Wbr over Deep Run carry?

About 56,840 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Md 100 Wbr over Deep Run?

The structure is 869 ft (264.9 m) long with a longest span of 241 ft (73.5 m) and a deck 54 ft wide.

Who owns Md 100 Wbr over Deep Run?

It is owned by the State Highway Agency.