US Bridges

County RD 1070 over Hewlett Br

PoorPosted for load

Lawrence County, Missouri · S 12 T 26 N R 28 W · Structure no. 25183

Built
1925
100 years old, rebuilt 1988
Condition
Poor
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
2 main spans
Daily traffic
150
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 1070 over Hewlett Br is a steel stringer/multi-beam or girder carrying County RD 1070 over Hewlett Br in Lawrence County, Missouri. It was built in 1925 and reconstructed in 1988, so it is 100 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. Its operating status is: posted for load restriction.

It carries about 150 vehicles a day, roughly 10% of them trucks, projected to reach 210 by 2043. The structure is 40 ft (12.2 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCounty RD 1070
CrossesHewlett Br
LocationS 12 T 26 N R 28 W
RouteCounty Highway 660
Coordinates36.98288, -93.93465
Functional classRural Local

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating6 US tons
Inventory rating4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length40 ft (12.2 m)
Longest span18 ft (5.5 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic210 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$344,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 1070 over Hewlett Br built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1988.

What condition is County RD 1070 over Hewlett Br 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 March 2023.

How much traffic does County RD 1070 over Hewlett Br carry?

About 150 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 1070 over Hewlett Br?

The structure is 40 ft (12.2 m) long with a longest span of 18 ft (5.5 m) and a deck 20 ft wide.

Who owns County RD 1070 over Hewlett Br?

It is owned by the County Highway Agency and maintained by the Other Local Agency.