US Bridges

Boynton RD E over E Locust CR

Poor

Sullivan County, Missouri · S 1 T 63 N R 20 W · Structure no. 1646

Built
1966
59 years old
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
234 ft
4 main spans
Daily traffic
50
2024 count
Owner
State
State Highway Agency

About this bridge

Boynton RD E over E Locust CR is a steel continuous stringer/multi-beam or girder carrying Boynton RD E over E Locust CR in Sullivan County, Missouri. It was built in 1966, so it is 59 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 50 vehicles a day, roughly 17% of them trucks, projected to reach 63 by 2044. The structure is 234 ft (71.3 m) long and 29 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesBoynton RD E
CrossesE Locust CR
LocationS 1 T 63 N R 20 W
RouteCounty Highway 0
Coordinates40.28389, -93.08815
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.7 US tons
Inventory rating19.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length234 ft (71.3 m)
Longest span65 ft (19.8 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic63 by 2044
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Boynton RD E over E Locust CR built?

It was built in 1966, making it 59 years old in 2025.

What condition is Boynton RD E over E Locust CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

How much traffic does Boynton RD E over E Locust CR carry?

About 50 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is Boynton RD E over E Locust CR?

The structure is 234 ft (71.3 m) long with a longest span of 65 ft (19.8 m) and a deck 29 ft wide.

Who owns Boynton RD E over E Locust CR?

It is owned by the State Highway Agency.