US Bridges

Md 200 over Mill Creek Tributary

Good

Montgomery County, Maryland · 4.56 MI West of Md 97 · Structure no. 300000M-V036020

Built
2008
17 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
47 ft
Daily traffic
68,500
2020 count
Owner
Toll Authority
State Toll Authority

About this bridge

Md 200 over Mill Creek Tributary is a concrete culvert carrying Md 200 over Mill Creek Tributary in Montgomery County, Maryland. It was built in 2008, so it is 17 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 68,500 vehicles a day, roughly 1% of them trucks, projected to reach 84,725 by 2044. The structure is 47 ft (14.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMd 200
CrossesMill Creek Tributary
Location4.56 MI West of Md 97
RouteState Highway 200
CountyMontgomery County
StateMaryland
Coordinates39.1358, -77.14961
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 25 or greater
Structure length47 ft (14.3 m)
Longest span47 ft (14.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic68,500 (2020)
Projected traffic84,725 by 2044
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
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 over Mill Creek Tributary built?

It was built in 2008, making it 17 years old in 2025.

What condition is Md 200 over Mill Creek Tributary 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 March 2024.

How much traffic does Md 200 over Mill Creek Tributary carry?

About 68,500 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Md 200 over Mill Creek Tributary?

The structure is 47 ft (14.3 m) long with a longest span of 47 ft (14.3 m).

Who owns Md 200 over Mill Creek Tributary?

It is owned by the State Toll Authority.