US Bridges

Parish RD 410 over Mill Creek

Good

Red River Parish, Louisiana · 3 MI N of LA 507 · Structure no. 044132136931391

Built
1997
28 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
235
2020 count
Owner
County
County Highway Agency

About this bridge

Parish RD 410 over Mill Creek is a concrete slab carrying Parish RD 410 over Mill Creek in Red River Parish, Louisiana. It was built in 1997, so it is 28 years old, younger than the Louisiana average of 43 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 235 vehicles a day, projected to reach 258 by 2040. The structure is 76 ft (23.2 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesParish RD 410
CrossesMill Creek
Location3 MI N of LA 507
RouteCounty Highway 0
Coordinates32.22711, -93.23258
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment6: Equal to present minimum criteria
Operating rating52.5 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic235 (2020)
Projected traffic258 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Parish RD 410 over Mill Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Parish RD 410 over Mill 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 2023.

How much traffic does Parish RD 410 over Mill Creek carry?

About 235 vehicles per day (2020 count).

How long is Parish RD 410 over Mill Creek?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Parish RD 410 over Mill Creek?

It is owned by the County Highway Agency.