US Bridges

TR 305A over Galum Creek

Fair

Perry County, Illinois · 0.5 MI N Jackson CO · Structure no. 073309900000000

Built
1977
48 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
76 ft
3 main spans
Daily traffic
35
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 305A over Galum Creek is a concrete slab carrying TR 305A over Galum Creek in Perry County, Illinois. It was built in 1977, so it is 48 years old, older than the Illinois average of 45.3 years.

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

It carries about 35 vehicles a day, roughly 23% of them trucks, projected to reach 51 by 2046. The structure is 76 ft (23.2 m) long and 23 ft wide.

CarriesTR 305A
CrossesGalum Creek
Location0.5 MI N Jackson CO
RouteCounty Highway 0
Coordinates37.96059, -89.42985
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span34 ft (10.4 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic51 by 2046
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 305A over Galum Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is TR 305A over Galum Creek 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 TR 305A over Galum Creek carry?

About 35 vehicles per day (2024 count), of which roughly 23% are trucks.

How long is TR 305A over Galum Creek?

The structure is 76 ft (23.2 m) long with a longest span of 34 ft (10.4 m) and a deck 23 ft wide.

Who owns TR 305A over Galum Creek?

It is owned by the Town or Township Highway Agency.