US Bridges

TR 29 over Pond Creek

Fair

Williamson County, Illinois · 2 Mi. NW Corinth · Structure no. 100309000000000

Built
1977
48 years old
Condition
Fair
inspected February 2023
Type
Channel Beam
Concrete
Length
70 ft
2 main spans
Daily traffic
75
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 29 over Pond Creek is a concrete channel beam carrying TR 29 over Pond Creek in Williamson 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 75 vehicles a day, roughly 35% of them trucks, projected to reach 76 by 2046. The structure is 70 ft (21.3 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesTR 29
CrossesPond Creek
Location2 Mi. NW Corinth
RouteCounty Highway 0
Coordinates37.85126, -88.79913
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span35 ft (10.7 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2021)
Projected traffic76 by 2046
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
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 29 over Pond Creek built?

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

What condition is TR 29 over Pond 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 February 2023.

How much traffic does TR 29 over Pond Creek carry?

About 75 vehicles per day (2021 count), of which roughly 35% are trucks.

How long is TR 29 over Pond Creek?

The structure is 70 ft (21.3 m) long with a longest span of 35 ft (10.7 m) and a deck 23 ft wide.

Who owns TR 29 over Pond Creek?

It is owned by the Town or Township Highway Agency.