US Bridges

Rt Dd E over Billys Br

Good

Macon County, Missouri · S 19 T 58 N R 13 W · Structure no. 36344

Built
2020
5 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
115 ft
3 main spans
Daily traffic
386
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Dd E over Billys Br is a concrete continuous slab carrying Rt Dd E over Billys Br in Macon County, Missouri. It was built in 2020, so it is 5 years old, younger than the Missouri 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 386 vehicles a day, roughly 10% of them trucks, projected to reach 483 by 2044. The structure is 115 ft (35.2 m) long and 27 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesRt Dd E
CrossesBillys Br
LocationS 19 T 58 N R 13 W
RouteState Highway 0DD
Coordinates39.8085, -92.39245
Functional classRural Minor Collector

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.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.4 US tons
Inventory rating42.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length115 ft (35.2 m)
Longest span44 ft (13.4 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic386 (2024)
Projected traffic483 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Rt Dd E over Billys Br built?

It was built in 2020, making it 5 years old in 2025.

What condition is Rt Dd E over Billys Br 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 Rt Dd E over Billys Br carry?

About 386 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt Dd E over Billys Br?

The structure is 115 ft (35.2 m) long with a longest span of 44 ft (13.4 m) and a deck 27 ft wide.

Who owns Rt Dd E over Billys Br?

It is owned by the State Highway Agency.