US Bridges

Sam Eig Highway over Muddy Branch Tributary

Good

Montgomery County, Maryland · 1 MI E of Muddy Branch RD · Structure no. 200000M-0228020

Built
1991
34 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
28 ft
Daily traffic
34,353
2022 count
Owner
County
County Highway Agency

About this bridge

Sam Eig Highway over Muddy Branch Tributary is a concrete culvert carrying Sam Eig Highway over Muddy Branch Tributary in Montgomery County, Maryland. It was built in 1991, so it is 34 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 34,353 vehicles a day, roughly 5% of them trucks, projected to reach 37,966 by 2042. The structure is 28 ft (8.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSam Eig Highway
CrossesMuddy Branch Tributary
Location1 MI E of Muddy Branch RD
RouteCounty Highway 6271
Coordinates39.11012, -77.21108
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum 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 20
Structure length28 ft (8.4 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,353 (2022)
Projected traffic37,966 by 2042
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Sam Eig Highway over Muddy Branch Tributary built?

It was built in 1991, making it 34 years old in 2025.

What condition is Sam Eig Highway over Muddy Branch 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 July 2024.

How much traffic does Sam Eig Highway over Muddy Branch Tributary carry?

About 34,353 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Sam Eig Highway over Muddy Branch Tributary?

The structure is 28 ft (8.4 m) long with a longest span of 12 ft (3.7 m).

Who owns Sam Eig Highway over Muddy Branch Tributary?

It is owned by the County Highway Agency.