US Bridges

Rannoch Road over Minnehaha Branch

Fair

Montgomery County, Maryland · 0.05 Miles West of Md 614 · Structure no. 200000M-0152020

Built
1920
105 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
21 ft
Daily traffic
897
2021 count
Owner
County
County Highway Agency

About this bridge

Rannoch Road over Minnehaha Branch is a concrete culvert carrying Rannoch Road over Minnehaha Branch in Montgomery County, Maryland. It was built in 1920, so it is 105 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 897 vehicles a day, roughly 3% of them trucks, projected to reach 1,003 by 2041. The structure is 21 ft (6.4 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRannoch Road
CrossesMinnehaha Branch
Location0.05 Miles West of Md 614
RouteCounty Highway 1327
CountyMontgomery County
StateMaryland
Coordinates38.96964, -77.133
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width41 ft (12.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic897 (2021)
Projected traffic1,003 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Rannoch Road over Minnehaha Branch built?

It was built in 1920, making it 105 years old in 2025.

What condition is Rannoch Road over Minnehaha Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does Rannoch Road over Minnehaha Branch carry?

About 897 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Rannoch Road over Minnehaha Branch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 41 ft wide.

Who owns Rannoch Road over Minnehaha Branch?

It is owned by the County Highway Agency.