US Bridges

4508 over Gillum CR

FairPosted for load

Bates County, Missouri · S 14 T 39 N R 33 W · Structure no. 24507

Built
1910
115 years old, rebuilt 1984
Condition
Fair
inspected January 2025
Type
Girder and Floorbeam System
Steel
Length
52 ft
1 main span
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

4508 over Gillum CR is a steel girder and floorbeam system carrying 4508 over Gillum CR in Bates County, Missouri. It was built in 1910 and reconstructed in 1984, so it is 115 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, roughly 10% of them trucks, projected to reach 39 by 2043. The structure is 52 ft (15.8 m) long and 15 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries4508
CrossesGillum CR
LocationS 14 T 39 N R 33 W
RouteCounty Highway 507
CountyBates County
StateMissouri
Coordinates38.15923, -94.51906
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating10.9 US tons
Inventory rating6 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length52 ft (15.8 m)
Longest span48 ft (14.6 m)
Deck width15 ft (4.7 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic39 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$416,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 4508 over Gillum CR built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1984.

What condition is 4508 over Gillum CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.

How much traffic does 4508 over Gillum CR carry?

About 30 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 4508 over Gillum CR?

The structure is 52 ft (15.8 m) long with a longest span of 48 ft (14.6 m) and a deck 15 ft wide.

Who owns 4508 over Gillum CR?

It is owned by the County Highway Agency.