US Bridges

Highway T-38 S over North Skunk River

Good

Jasper County, Iowa · 078171104 · Structure no. 000000000007451

Built
1999
26 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
331 ft
3 main spans
Daily traffic
1,130
2022 count
Owner
County
County Highway Agency

About this bridge

Highway T-38 S over North Skunk River is a prestressed concrete stringer/multi-beam or girder carrying Highway T-38 S over North Skunk River in Jasper County, Iowa. It was built in 1999, so it is 26 years old, younger than the Iowa average of 45.5 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 1,130 vehicles a day, roughly 16% of them trucks, projected to reach 1,130 by 2043. The structure is 331 ft (100.9 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHighway T-38 S
CrossesNorth Skunk River
Location078171104
RouteCity Street 0
StateIowa
Coordinates41.58037, -92.78189
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 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 alignment6: Equal to present minimum criteria
Operating rating63.7 US tons
Inventory rating38.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length331 ft (100.9 m)
Longest span111 ft (33.8 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,130 (2022)
Projected traffic1,130 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Highway T-38 S over North Skunk River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Highway T-38 S over North Skunk River 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 April 2023.

How much traffic does Highway T-38 S over North Skunk River carry?

About 1,130 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Highway T-38 S over North Skunk River?

The structure is 331 ft (100.9 m) long with a longest span of 111 ft (33.8 m) and a deck 37 ft wide.

Who owns Highway T-38 S over North Skunk River?

It is owned by the County Highway Agency.