US Bridges

County RD 29 over Arapahoe CR

PoorPosted for load

Andrew County, Missouri · S 10 T 61 N R 36 W · Structure no. 13095

Built
1930
95 years old
Condition
Poor
inspected January 2025
Type
Truss - Thru
Steel
Length
102 ft
1 main span
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 29 over Arapahoe CR is a steel truss - thru carrying County RD 29 over Arapahoe CR in Andrew County, Missouri. It was built in 1930, so it is 95 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 3 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2044. The structure is 102 ft (31.1 m) long and 18 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCounty RD 29
CrossesArapahoe CR
LocationS 10 T 61 N R 36 W
RouteCounty Highway 29
Coordinates40.10431, -94.93607
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
Deck7 GoodSome minor problems.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
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 rating5 US tons
Inventory rating3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadOther
Structure length102 ft (31.1 m)
Longest span100 ft (30.4 m)
Deck width18 ft (5.6 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic40 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$727,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 29 over Arapahoe CR built?

It was built in 1930, making it 95 years old in 2025.

What condition is County RD 29 over Arapahoe 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 January 2025.

How much traffic does County RD 29 over Arapahoe CR carry?

About 35 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 29 over Arapahoe CR?

The structure is 102 ft (31.1 m) long with a longest span of 100 ft (30.4 m) and a deck 18 ft wide.

Who owns County RD 29 over Arapahoe CR?

It is owned by the County Highway Agency.