US Bridges

TR 7.75 W over Richland Creek

Good

Sangamon County, Illinois · 0.5 S of Salisbury · Structure no. 084349500000000

Built
1977
48 years old
Condition
Good
inspected March 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
125 ft
3 main spans
Daily traffic
200
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 7.75 W over Richland Creek is a prestressed concrete box beam or girders - multiple carrying TR 7.75 W over Richland Creek in Sangamon 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, roughly 12% of them trucks, projected to reach 278 by 2046. The structure is 125 ft (38.1 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 7.75 W
CrossesRichland Creek
Location0.5 S of Salisbury
RouteCounty Highway 0
CountySangamon County
StateIllinois
Coordinates39.88057, -89.80151
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span42 ft (12.8 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic278 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 7.75 W over Richland Creek built?

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

What condition is TR 7.75 W over Richland Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2022.

How much traffic does TR 7.75 W over Richland Creek carry?

About 200 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is TR 7.75 W over Richland Creek?

The structure is 125 ft (38.1 m) long with a longest span of 42 ft (12.8 m) and a deck 27 ft wide.

Who owns TR 7.75 W over Richland Creek?

It is owned by the Town or Township Highway Agency.