US Bridges

Md 108 over Trib to James Creek

Good

Montgomery County, Maryland · 1.24 Miles East of Md 97 · Structure no. 100000150164030

Built
1994
31 years old
Condition
Good
inspected September 2024
Type
Culvert
Steel
Length
34 ft
3 main spans
Daily traffic
22,100
2018 count
Owner
State
State Highway Agency

About this bridge

Md 108 over Trib to James Creek is a steel culvert carrying Md 108 over Trib to James Creek in Montgomery County, Maryland. It was built in 1994, so it is 31 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 22,100 vehicles a day, roughly 4% of them trucks, projected to reach 22,140 by 2038. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMd 108
CrossesTrib to James Creek
Location1.24 Miles East of Md 97
RouteState Highway 108
Coordinates39.14784, -77.05332
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,100 (2018)
Projected traffic22,140 by 2038
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Md 108 over Trib to James Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Md 108 over Trib to James Creek 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 September 2024.

How much traffic does Md 108 over Trib to James Creek carry?

About 22,100 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Md 108 over Trib to James Creek?

The structure is 34 ft (10.4 m) long with a longest span of 9 ft (2.7 m).

Who owns Md 108 over Trib to James Creek?

It is owned by the State Highway Agency.