US Bridges

G ST over I129/US75

Fair

Dakota County, Nebraska · Dakota AVE/I129 Intrch 1E · Structure no. S129 00201

Built
1975
50 years old, rebuilt 2021
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
198 ft
2 main spans
Daily traffic
100
2003 count
Owner
State
State Highway Agency

About this bridge

G ST over I129/US75 is a steel continuous stringer/multi-beam or girder carrying G ST over I129/US75 in Dakota County, Nebraska. It was built in 1975 and reconstructed in 2021, so it is 50 years old, older than the Nebraska average of 47.1 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 145 by 2033. The structure is 198 ft (60.4 m) long and 31 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

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CarriesG ST
CrossesI129/US75
LocationDakota AVE/I129 Intrch 1E
RouteCounty Highway 235
CountyDakota County
StateNebraska
Coordinates42.4494, -96.4041
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.3 US tons
Inventory rating34.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length198 ft (60.4 m)
Longest span99 ft (30.2 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2003)
Projected traffic145 by 2033
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was G ST over I129/US75 built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2021.

What condition is G ST over I129/US75 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 September 2024.

How much traffic does G ST over I129/US75 carry?

About 100 vehicles per day (2003 count), of which roughly 10% are trucks.

How long is G ST over I129/US75?

The structure is 198 ft (60.4 m) long with a longest span of 99 ft (30.2 m) and a deck 31 ft wide.

Who owns G ST over I129/US75?

It is owned by the State Highway Agency.