US Bridges

Md 118 over CSX Transportation

Good

Montgomery County, Maryland · 0.98 Mile N of Md 117 · Structure no. 100000150179010

Built
1998
27 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
142 ft
1 main span
Daily traffic
25,451
2009 count
Owner
State
State Highway Agency

About this bridge

Md 118 over CSX Transportation is a steel stringer/multi-beam or girder carrying Md 118 over CSX Transportation in Montgomery County, Maryland. It was built in 1998, so it is 27 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 25,451 vehicles a day, roughly 5% of them trucks, projected to reach 27,143 by 2026. The structure is 142 ft (43.3 m) long and 114 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesMd 118
CrossesCSX Transportation
Location0.98 Mile N of Md 117
RouteState Highway 118
Coordinates39.17431, -77.27332
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating82.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span136 ft (41.5 m)
Deck width114 ft (34.7 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,451 (2009)
Projected traffic27,143 by 2026
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Md 118 over CSX Transportation built?

It was built in 1998, making it 27 years old in 2025.

What condition is Md 118 over CSX Transportation 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 2023.

How much traffic does Md 118 over CSX Transportation carry?

About 25,451 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Md 118 over CSX Transportation?

The structure is 142 ft (43.3 m) long with a longest span of 136 ft (41.5 m) and a deck 114 ft wide.

Who owns Md 118 over CSX Transportation?

It is owned by the State Highway Agency.