US Bridges

Md 100Q (queenstow over Md 100

Good

Anne Arundel County, Maryland · 1 MI E of Md 170 · Structure no. 100000020190010

Built
1995
30 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
313 ft
2 main spans
Daily traffic
1,211
2009 count
Owner
State
State Highway Agency

About this bridge

Md 100Q (queenstow over Md 100 is a steel continuous stringer/multi-beam or girder carrying Md 100Q (queenstow over Md 100 in Anne Arundel County, Maryland. It was built in 1995, so it is 30 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 1,211 vehicles a day, roughly 5% of them trucks, projected to reach 1,685 by 2026. The structure is 313 ft (95.4 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

No coordinates are recorded for this structure.

CarriesMd 100Q (queenstow
CrossesMd 100
Location1 MI E of Md 170
RouteState Highway 100Q
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating72.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length313 ft (95.4 m)
Longest span155 ft (47.2 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,211 (2009)
Projected traffic1,685 by 2026
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 100Q (queenstow over Md 100 built?

It was built in 1995, making it 30 years old in 2025.

What condition is Md 100Q (queenstow 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 October 2024.

How much traffic does Md 100Q (queenstow over Md 100 carry?

About 1,211 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Md 100Q (queenstow over Md 100?

The structure is 313 ft (95.4 m) long with a longest span of 155 ft (47.2 m) and a deck 34 ft wide.

Who owns Md 100Q (queenstow over Md 100?

It is owned by the State Highway Agency.