US Bridges

Ednor Road over Northwest Branch

Fair

Montgomery County, Maryland · 1.6 Miles West of Md 650 · Structure no. 200000M-0106010

Built
1990
35 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
5,308
2024 count
Owner
County
County Highway Agency

About this bridge

Ednor Road over Northwest Branch is a prestressed concrete slab carrying Ednor Road over Northwest Branch in Montgomery County, Maryland. It was built in 1990, so it is 35 years old, younger 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 6 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 5,308 vehicles a day, roughly 3% of them trucks, projected to reach 6,476 by 2044. The structure is 42 ft (12.8 m) long and 42 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesEdnor Road
CrossesNorthwest Branch
Location1.6 Miles West of Md 650
RouteCounty Highway 145
CountyMontgomery County
StateMaryland
Coordinates39.12691, -77.02079
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: 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 rating66.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span39 ft (11.9 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,308 (2024)
Projected traffic6,476 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Ednor Road over Northwest Branch built?

It was built in 1990, making it 35 years old in 2025.

What condition is Ednor Road over Northwest 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 October 2024.

How much traffic does Ednor Road over Northwest Branch carry?

About 5,308 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Ednor Road over Northwest Branch?

The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 42 ft wide.

Who owns Ednor Road over Northwest Branch?

It is owned by the County Highway Agency.