US Bridges

County Road 108 over Okannatie Creek

Good

Union County, Mississippi · Sec 16 T 8S R 3E · Structure no. SA7300000000140

Built
2008
17 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
140 ft
3 main spans
Daily traffic
150
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 108 over Okannatie Creek is a prestressed concrete stringer/multi-beam or girder carrying County Road 108 over Okannatie Creek in Union County, Mississippi. It was built in 2008, so it is 17 years old, younger 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 150 vehicles a day, roughly 5% of them trucks, projected to reach 225 by 2042. The structure is 140 ft (42.7 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCounty Road 108
CrossesOkannatie Creek
LocationSec 16 T 8S R 3E
RouteCounty Highway 100
Coordinates34.38804, -88.99831
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating34.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span60 ft (18.3 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic225 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$663,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 108 over Okannatie Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is County Road 108 over Okannatie 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 November 2023.

How much traffic does County Road 108 over Okannatie Creek carry?

About 150 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is County Road 108 over Okannatie Creek?

The structure is 140 ft (42.7 m) long with a longest span of 60 ft (18.3 m) and a deck 31 ft wide.

Who owns County Road 108 over Okannatie Creek?

It is owned by the County Highway Agency.