US Bridges

US 40 Scn over Snib Hollow Run

Good

Allegany County, Maryland · 0.43 M E of Br No 0103700 · Structure no. 100000010175020

Built
2003
22 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
281
2009 count
Owner
State
State Highway Agency

About this bridge

US 40 Scn over Snib Hollow Run is a concrete culvert carrying US 40 Scn over Snib Hollow Run in Allegany County, Maryland. It was built in 2003, so it is 22 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 281 vehicles a day, roughly 8% of them trucks, projected to reach 312 by 2026. The structure is 21 ft (6.4 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesUS 40 Scn
CrossesSnib Hollow Run
Location0.43 M E of Br No 0103700
RouteU.S. Route 40
CountyAllegany County
StateMaryland
Coordinates39.70453, -78.36125
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating86 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic281 (2009)
Projected traffic312 by 2026
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 40 Scn over Snib Hollow Run built?

It was built in 2003, making it 22 years old in 2025.

What condition is US 40 Scn over Snib Hollow Run 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 October 2023.

How much traffic does US 40 Scn over Snib Hollow Run carry?

About 281 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is US 40 Scn over Snib Hollow Run?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 28 ft wide.

Who owns US 40 Scn over Snib Hollow Run?

It is owned by the State Highway Agency.