US Bridges

TR 337 over Little Apple Creek

Good

Morgan County, Illinois · 1.1MI SW Nortonville · Structure no. 069321400000000

Built
1989
36 years old
Condition
Good
inspected October 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 337 over Little Apple Creek is a prestressed concrete box beam or girders - multiple carrying TR 337 over Little Apple Creek in Morgan County, Illinois. It was built in 1989, so it is 36 years old, younger 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 50 vehicles a day, projected to reach 51 by 2046. The structure is 75 ft (22.9 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 337
CrossesLittle Apple Creek
Location1.1MI SW Nortonville
RouteCounty Highway 0
Coordinates39.55249, -90.17158
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating41.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span73 ft (22.3 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic51 by 2046
Trucks0%
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 337 over Little Apple Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is TR 337 over Little Apple 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 October 2021.

How much traffic does TR 337 over Little Apple Creek carry?

About 50 vehicles per day (2024 count).

How long is TR 337 over Little Apple Creek?

The structure is 75 ft (22.9 m) long with a longest span of 73 ft (22.3 m) and a deck 24 ft wide.

Who owns TR 337 over Little Apple Creek?

It is owned by the Town or Township Highway Agency.