US Bridges

Md 100J over Md 100

Good

Howard County, Maryland · .11 M N of Meadowbrook LA · Structure no. 100000130138010

Built
1992
33 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
202 ft
2 main spans
Daily traffic
18,231
2009 count
Owner
State
State Highway Agency

About this bridge

Md 100J over Md 100 is a steel stringer/multi-beam or girder carrying Md 100J over Md 100 in Howard County, Maryland. It was built in 1992, so it is 33 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 18,231 vehicles a day, roughly 5% of them trucks, projected to reach 22,462 by 2026. The structure is 202 ft (61.6 m) long and 81 ft wide.

CarriesMd 100J
CrossesMd 100
Location.11 M N of Meadowbrook LA
RouteState Highway 100J
Coordinates39.24771, -76.81712
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating81.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length202 ft (61.6 m)
Longest span105 ft (32 m)
Deck width81 ft (24.6 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,231 (2009)
Projected traffic22,462 by 2026
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Md 100J over Md 100 built?

It was built in 1992, making it 33 years old in 2025.

What condition is Md 100J over Md 100 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Md 100J over Md 100 carry?

About 18,231 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Md 100J over Md 100?

The structure is 202 ft (61.6 m) long with a longest span of 105 ft (32 m) and a deck 81 ft wide.

Who owns Md 100J over Md 100?

It is owned by the State Highway Agency.