US Bridges

TR 74 (11W) over Richland Creek

Fair

Sangamon County, Illinois · 3.0 MI E P Plains · Structure no. 084304500000000

Built
1959
66 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
146 ft
4 main spans
Daily traffic
200
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 74 (11W) over Richland Creek is a concrete slab carrying TR 74 (11W) over Richland Creek in Sangamon County, Illinois. It was built in 1959, so it is 66 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 5 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 202 by 2046. The structure is 146 ft (44.5 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTR 74 (11W)
CrossesRichland Creek
Location3.0 MI E P Plains
RouteCounty Highway 0
CountySangamon County
StateIllinois
Coordinates39.88133, -89.86386
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.
Superstructure7 GoodSome minor problems.
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating37.1 US tons
Inventory rating22.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHS 15
Structure length146 ft (44.5 m)
Longest span40 ft (12.2 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic202 by 2046
Trucks5%
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

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 74 (11W) over Richland Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is TR 74 (11W) over Richland 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 April 2024.

How much traffic does TR 74 (11W) over Richland Creek carry?

About 200 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is TR 74 (11W) over Richland Creek?

The structure is 146 ft (44.5 m) long with a longest span of 40 ft (12.2 m) and a deck 29 ft wide.

Who owns TR 74 (11W) over Richland Creek?

It is owned by the Town or Township Highway Agency.