US Bridges

Md 200 (icc) over Rock Creek

Good

Montgomery County, Maryland · 3.30 MI W of Md 97 · Structure no. 300000M-V049010

Built
2010
15 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
305 ft
3 main spans
Daily traffic
62,479
2019 count
Owner
Toll Authority
State Toll Authority

About this bridge

Md 200 (icc) over Rock Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Md 200 (icc) over Rock Creek in Montgomery County, Maryland. It was built in 2010, so it is 15 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 62,479 vehicles a day, roughly 3% of them trucks, projected to reach 122,299 by 2041. The structure is 305 ft (93 m) long and 125 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMd 200 (icc)
CrossesRock Creek
Location3.30 MI W of Md 97
RouteState Highway 200
CountyMontgomery County
StateMaryland
Coordinates39.13555, -77.12852
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length305 ft (93 m)
Longest span120 ft (36.6 m)
Deck width125 ft (38 m)
Roadway width118 ft (36 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62,479 (2019)
Projected traffic122,299 by 2041
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 200 (icc) over Rock Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Md 200 (icc) over Rock Creek 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 2023.

How much traffic does Md 200 (icc) over Rock Creek carry?

About 62,479 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is Md 200 (icc) over Rock Creek?

The structure is 305 ft (93 m) long with a longest span of 120 ft (36.6 m) and a deck 125 ft wide.

Who owns Md 200 (icc) over Rock Creek?

It is owned by the State Toll Authority.