US Bridges

Motter Ave over US 15

Good

Frederick County, Maryland · 0.53 MI S of Md 26 · Structure no. 100000100098010

Built
2014
11 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
289 ft
2 main spans
Daily traffic
6,041
2009 count
Owner
State
State Highway Agency

About this bridge

Motter Ave over US 15 is a steel continuous stringer/multi-beam or girder carrying Motter Ave over US 15 in Frederick County, Maryland. It was built in 2014, so it is 11 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 6,041 vehicles a day, roughly 5% of them trucks, projected to reach 10,100 by 2030. The structure is 289 ft (88 m) long and 97 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesMotter Ave
CrossesUS 15
Location0.53 MI S of Md 26
RouteCity Street 1020
CountyFrederick County
StateMaryland
Coordinates39.43535, -77.41029
Functional classUrban Minor 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.4 US tons
Inventory rating59 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length289 ft (88 m)
Longest span145 ft (44.2 m)
Deck width97 ft (29.7 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,041 (2009)
Projected traffic10,100 by 2030
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.8 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Motter Ave over US 15 built?

It was built in 2014, making it 11 years old in 2025.

What condition is Motter Ave over US 15 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 September 2024.

How much traffic does Motter Ave over US 15 carry?

About 6,041 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Motter Ave over US 15?

The structure is 289 ft (88 m) long with a longest span of 145 ft (44.2 m) and a deck 97 ft wide.

Who owns Motter Ave over US 15?

It is owned by the State Highway Agency.