US Bridges

Mt Sinai Road over Richland Creek

Good

Marion County, Mississippi · Sec 35 T 4N R12E · Structure no. SA4600000000093

Built
1963
62 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
97 ft
1 main span
Daily traffic
190
2024 count
Owner
County
County Highway Agency

About this bridge

Mt Sinai Road over Richland Creek is a prestressed concrete stringer/multi-beam or girder carrying Mt Sinai Road over Richland Creek in Marion County, Mississippi. It was built in 1963, so it is 62 years old, older than the Mississippi average of 38.9 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 190 vehicles a day, roughly 8% of them trucks, projected to reach 220 by 2046. The structure is 97 ft (29.6 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMt Sinai Road
CrossesRichland Creek
LocationSec 35 T 4N R12E
RouteCounty Highway 136
Coordinates31.26368, -89.9561
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.8 US tons
Inventory rating32.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+3 approach)
Design loadUnknown
Structure length97 ft (29.6 m)
Longest span40 ft (12.2 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2024)
Projected traffic220 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$216,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mt Sinai Road over Richland Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Mt Sinai Road over Richland 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 March 2024.

How much traffic does Mt Sinai Road over Richland Creek carry?

About 190 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Mt Sinai Road over Richland Creek?

The structure is 97 ft (29.6 m) long with a longest span of 40 ft (12.2 m) and a deck 25 ft wide.

Who owns Mt Sinai Road over Richland Creek?

It is owned by the County Highway Agency.