US Bridges

Sanner Road over Trib. to Middle Patuxent

Good

Howard County, Maryland · 0.3 MI S Pindell School · Structure no. 200000HO0108010

Built
2003
22 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
7,735
2022 count
Owner
County
County Highway Agency

About this bridge

Sanner Road over Trib. to Middle Patuxent is a prestressed concrete stringer/multi-beam or girder carrying Sanner Road over Trib. to Middle Patuxent in Howard 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 7,735 vehicles a day, roughly 4% of them trucks, projected to reach 10,418 by 2042. The structure is 61 ft (18.6 m) long and 52 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSanner Road
CrossesTrib. to Middle Patuxent
Location0.3 MI S Pindell School
RouteCounty Highway 108
Coordinates39.17803, -76.89783
Functional classRural Minor Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating46 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length61 ft (18.6 m)
Longest span57 ft (17.4 m)
Deck width52 ft (15.9 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,735 (2022)
Projected traffic10,418 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sanner Road over Trib. to Middle Patuxent built?

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

What condition is Sanner Road over Trib. to Middle Patuxent 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 March 2024.

How much traffic does Sanner Road over Trib. to Middle Patuxent carry?

About 7,735 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Sanner Road over Trib. to Middle Patuxent?

The structure is 61 ft (18.6 m) long with a longest span of 57 ft (17.4 m) and a deck 52 ft wide.

Who owns Sanner Road over Trib. to Middle Patuxent?

It is owned by the County Highway Agency.