US Bridges

SH 321 Log 1.19 over Bayou Two Prairie

Good

Lonoke County, Arkansas · 1.15 MI E US 67 · Structure no. 0000000000A6466

Built
2021
4 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
75 ft
3 main spans
Daily traffic
20,000
2018 count
Owner
State
State Highway Agency

About this bridge

SH 321 Log 1.19 over Bayou Two Prairie is a concrete stringer/multi-beam or girder carrying SH 321 Log 1.19 over Bayou Two Prairie in Lonoke County, Arkansas. It was built in 2021, so it is 4 years old, younger than the Arkansas average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20,000 vehicles a day, roughly 1% of them trucks, projected to reach 21,000 by 2038. The structure is 75 ft (22.9 m) long and 41 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSH 321 Log 1.19
CrossesBayou Two Prairie
Location1.15 MI E US 67
RouteState Highway 321
CountyLonoke County
StateArkansas
Coordinates34.94125, -92.04414
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length75 ft (22.9 m)
Longest span25 ft (7.6 m)
Deck width41 ft (12.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2018)
Projected traffic21,000 by 2038
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 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 SH 321 Log 1.19 over Bayou Two Prairie built?

It was built in 2021, making it 4 years old in 2025.

What condition is SH 321 Log 1.19 over Bayou Two Prairie 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 October 2023.

How much traffic does SH 321 Log 1.19 over Bayou Two Prairie carry?

About 20,000 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is SH 321 Log 1.19 over Bayou Two Prairie?

The structure is 75 ft (22.9 m) long with a longest span of 25 ft (7.6 m) and a deck 41 ft wide.

Who owns SH 321 Log 1.19 over Bayou Two Prairie?

It is owned by the State Highway Agency.