US Bridges

Md 496 over Br of Big Pipe Creek

Fair

Carroll County, Maryland · 3.03 MI E of Md 97 · Structure no. 100000060039010

Built
1931
94 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
4,042
2009 count
Owner
State
State Highway Agency

About this bridge

Md 496 over Br of Big Pipe Creek is a concrete slab carrying Md 496 over Br of Big Pipe Creek in Carroll County, Maryland. It was built in 1931, so it is 94 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 4,042 vehicles a day, roughly 8% of them trucks, projected to reach 5,242 by 2029. The structure is 22 ft (6.7 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMd 496
CrossesBr of Big Pipe Creek
Location3.03 MI E of Md 97
RouteState Highway 496
CountyCarroll County
StateMaryland
Coordinates39.65465, -76.95747
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating43.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,042 (2009)
Projected traffic5,242 by 2029
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$45,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 496 over Br of Big Pipe Creek built?

It was built in 1931, making it 94 years old in 2025.

What condition is Md 496 over Br of Big Pipe Creek 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 March 2024.

How much traffic does Md 496 over Br of Big Pipe Creek carry?

About 4,042 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 496 over Br of Big Pipe Creek?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Md 496 over Br of Big Pipe Creek?

It is owned by the State Highway Agency.