US Bridges

Briggs Chaney Road over US 29

Good

Montgomery County, Maryland · At US 29 · Structure no. 100000150186010

Built
2007
18 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
183 ft
2 main spans
Daily traffic
11,212
2006 count
Owner
State
State Highway Agency

About this bridge

Briggs Chaney Road over US 29 is a steel continuous stringer/multi-beam or girder carrying Briggs Chaney Road over US 29 in Montgomery County, Maryland. It was built in 2007, so it is 18 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 11,212 vehicles a day, projected to reach 12,927 by 2026. The structure is 183 ft (55.8 m) long and 114 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesBriggs Chaney Road
CrossesUS 29
LocationAt US 29
RouteCounty Highway 95
CountyMontgomery County
StateMaryland
Coordinates39.08315, -76.94867
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 inspectionAugust 2023
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 rating110.1 US tons
Inventory rating62.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length183 ft (55.8 m)
Longest span100 ft (30.5 m)
Deck width114 ft (34.7 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,212 (2006)
Projected traffic12,927 by 2026
Trucks—
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed14.3 mi (23 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Briggs Chaney Road over US 29 built?

It was built in 2007, making it 18 years old in 2025.

What condition is Briggs Chaney Road over US 29 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 August 2023.

How much traffic does Briggs Chaney Road over US 29 carry?

About 11,212 vehicles per day (2006 count).

How long is Briggs Chaney Road over US 29?

The structure is 183 ft (55.8 m) long with a longest span of 100 ft (30.5 m) and a deck 114 ft wide.

Who owns Briggs Chaney Road over US 29?

It is owned by the State Highway Agency.