US Bridges

Humberson Road over Buffalo Run

FairPosted for load

Garrett County, Maryland · .5 MI NW Old Good Hope RD · Structure no. 200000G-0075010

Built
1935
90 years old, rebuilt 1997
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
133
2021 count
Owner
County
County Highway Agency

About this bridge

Humberson Road over Buffalo Run is a steel stringer/multi-beam or girder carrying Humberson Road over Buffalo Run in Garrett County, Maryland. It was built in 1935 and reconstructed in 1997, so it is 90 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 133 vehicles a day, roughly 5% of them trucks, projected to reach 165 by 2041. The structure is 31 ft (9.4 m) long and 15 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesHumberson Road
CrossesBuffalo Run
Location.5 MI NW Old Good Hope RD
RouteCounty Highway 354
CountyGarrett County
StateMaryland
Coordinates39.6764, -79.44458
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68 US tons
Inventory rating40.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width15 ft (4.7 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic133 (2021)
Projected traffic165 by 2041
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$20,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Humberson Road over Buffalo Run built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1997.

What condition is Humberson Road over Buffalo Run 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 September 2023.

How much traffic does Humberson Road over Buffalo Run carry?

About 133 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Humberson Road over Buffalo Run?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 15 ft wide.

Who owns Humberson Road over Buffalo Run?

It is owned by the County Highway Agency.